On the Yoshii river east of Osafune ran a separate Bizen current. Founded in the late Kamakura period and working through the Muromachi age, the Yoshii smiths — Naganori the apex among them — are known above all for a disciplined ko-gunome hamon of even, repeating rhythm: a school signature so consistent that attributions often rest on it alone.
Era
1280 — 1550
Members
49
Kokuhō
0
Jūbun
0
Jūbi
1
Tokujū
1
Jūyō
40
For Sale
2
49smiths0Kokuhō0Jūbun1Jūbi1Tokujū40Jūyō
The Bizen Yoshii School (吉井) Lineage
The The Bizen Yoshii School (吉井), active 1280–1550 in Bizen Province across 49 documented smiths: 0 Kokuhō (National Treasures), 0 Jūbun, 1 Jūbi, 1 Tokubetsu Jūyō, 40 Jūyō.
Phase 1 · The Bizen Yoshii School (吉井) · 1280 – 1550
Kiyonori (清則) — Mainline · 1429-1441. Jūyō. A tachi by Kiyonori dated Hotoku 1, the tenth month of 1449, carries the full signature Bizen Province Yoshii Fujiwara Kiyonori, naming at once the man, his family and his school. Kiyonori is a smith of the Bizen Yoshii group working through the middle Muromachi period, his dated blades running from Eikyo 3 in 1431 across the Kakitsu, Bun'an, Hotoku and Kyotoku years into the later 1450s. The signature compendia record him as the second to bear the name, a son of Yoshinori of the Yoshii line, and note that he later moved to Izumo. His work is the textbook face of a lineage that holds an unusual place in late Bizen history. The Yoshii group is traditionally said to have begun with Tamenori in the late Kamakura period, though works that far back are exceedingly rare; pieces no later than the Nanbokucho are classed as Ko-Yoshii, and the Muromachi production simply as Yoshii. While the other Bizen branches were drawn into Osafune, the Yoshii alone kept apart with a manner of their own, and Kiyonori is among the named, dated hands by which that manner is read.
The feature that fixes him is a small gunome linked in a regular, continuous run. The published sources put it plainly, that this lineage's style lies above all in a temper of *ko-gunome* connecting in an orderly sequence, 「小互の目が規則的に連れる」, and Kiyonori's blades carry it as their spine. Over a standing itame he tempers the row in *ko-nie*, mixing pointed and angular elements that give it a *togari-gokoro* character, the temper running slightly *ko-midare* near the base, with *ashi* entering and a soft, bright *nioiguchi*. On his finest dated tachi the temper takes on *sunagashi* and a *yubashiri*-like patch in the upper half, the row of small gunome running the length of the blade in the even, repeating cadence the school made its signature. It is this orderly linking, not flamboyance or scale, that distinguishes a Yoshii blade, and Kiyonori's hand renders it cleanly. His mei are cut with a habit the sources count among the school tells, many strokes driven in reverse against the chisel, so that even the signature carries a Yoshii mark.
The jigane beneath the temper is a tight *itame* mixed with *mokume*, standing somewhat in the grain, with fine *ji-nie* densely applied and *chikei* entering. Across it Kiyonori raises the *utsuri* that is the school's other great hallmark, a reflection so particular that the published sources describe it as if the very form of the hardened edge were projected straight into the *ji*, 「その刃文の形をそのまま地に映し出したような、一派特有の映り」. On the typical blades this *midare-utsuri* stands prominently, echoing the shape of the temper above it rather than drifting as an ordinary Bizen reflection would. The shape carrying this *ji* and *ha* is a *shinogi-zukuri* tachi with *iori-mune*, standard in width with a clear taper toward the point, the *kasane* somewhat thick, the *sori* rather deep with *sakizori* added and a *chu-kissaki*, a *bo-hi* carved on both faces and stopped at the base. The *boshi* enters in *midare-komi* and turns in *ko-maru*, at times with a slightly pointed tendency or a Jizo-like return, following the irregularity of the temper into the point rather than resolving it.
Kiyonori is not confined to one register. The published sources name a second face within the Yoshii record, a narrow *suguha* carrying only a slight admixture of small gunome, and he works it cleanly. A Kyotoku tachi is built in *shinogi-zukuri* with *mitsu-mune*, the *ji* a tight *ko-itame* with *ji-nie* and a distinct *utsuri*, the temper a narrow *suguha* with a little *ko-gunome* and *ko-nie*. A Bun'an wakizashi is *hira-zukuri*, wide and slightly extended with almost no curvature, the *ji* a well-forged *itame* of whitish tone, the temper again a narrow *suguha* mixed with slight gunome, with small *ashi* and *ko-nie* and a *sugu ko-maru boshi*, carved on the front within the *hitsu* with a relief *kurikara*. The published sources read this *suguha* not as a departure but as the other documented facet of the same school style, the calm half of a hand whose louder half is the linked gunome. His blades are also closely datable, the inscriptions spanning more than two decades, which the sources value as fine documentary material for studying the smith.
Within this body of work one blade stands apart, a Bun'an wakizashi the published sources single out as his high point. Its forging is fine, a tight *ko-itame* mixed with *itame* and interwoven with *chikei* and *ji-nie*, raising a standing *midare-utsuri*, and the temper a *ko-gunome* with *ko-ashi* that becomes somewhat reverse-slanting, *nioi-gachi* with *ko-nie*. The sources judge it well forged and, for a Yoshii work of the Muromachi period, unusually well covered in *nie*, holding that but for its wakizashi proportions its workmanship approaches the range of Ko-Yoshii itself, 「脇指姿の点を除けば古吉井の作域にせまる出来ばえで見事である」. Most of his record is the plainer, repeating production that makes the school recognizable, but in his best moments his hand reaches back toward the older, finer Yoshii standard. The conspicuous representative works, with their thick *kasane*, soft *nioiguchi* and reverse-chisel mei, the sources call the typical Yoshii blade in which the school's character shows most clearly, 「銘字には逆鏨を多用しているなど、吉井派の特色が顕著に表れた典型作」, while this one wakizashi shows how far that character could be pushed. His bright *midare-utsuri*, linked *ko-gunome* and reverse-chisel signature set his work apart within Bizen, holding a distinct line where the surrounding lineages were absorbed into Osafune.
Kiyonori's standing is that of a documented Muromachi master rather than a famed Kamakura name, his record sitting entirely at the Important Sword rank, with Fujishiro grading his work *chu-saku*. Eight of his blades are designated Juyo, papered across sessions from the fifteenth in 1967 to the sixty-seventh in 2021, a span showing his work recognized steadily over half a century of shinsa; none stand above that tier, with no National Treasure or Important Cultural Property among them. They are tachi and wakizashi both, all signed and most dated, so a buyer encounters a smith who can be placed to the year, which for a Muromachi Bizen hand is part of the appeal. Of recorded whereabouts one of his Juyo tachi is held by Yasukuni Shrine, the rest in private and collectors' hands. A signed, dated Yoshii Kiyonori is not beyond reach in the way a great Kamakura blade is; examples come to market from time to time, and for a collector drawn to the linked *ko-gunome* and reflected *utsuri* of late Bizen, one of his dated tachi is among the more attainable ways to hold the Yoshii manner in its clearest form.
Sanenori (眞則) — Mainline · 1345-1350. Jūbi, Jūyō. Smith of the Bizen Yoshii School.
Naganori (長則) — Mainline · 1504-1521. Tokujū, Jūyō. Smith of the Bizen Yoshii School.
Kagenori (景則) — Mainline · 1469-1487. Jūyō. A tanto by Kagenori dated Joji 5, the second month of 1366, carries the full signature Bizen no kuni Yoshii ju Kagenori, the two characters of the name cut left and right of the second mekugi-ana with a fine chisel and the date set to the reverse. Kagenori is a smith of the Bizen Yoshii group, the lineage that worked at Yoshii, the locality facing Osafune across the Yoshii River, and his signed and dated blades run from the late Kamakura period through the Nanbokucho across the Kareki, Joji, Kanno, Eitoku and later years. Among the craftsmen of the group his is the name that endured the longest, the published sources noting that within the Yoshii smiths it is Kagenori whose lineage-name 「名跡が最も長く続いている」, with one account even holding him 「一説に吉井の嫡流」, the main line of the school. The group is traditionally said to have begun with Tamenori in the late Kamakura period, though works that far back are exceedingly rare, and so pieces no later than the Nanbokucho are classed as Ko-Yoshii and the Muromachi production simply as Yoshii. While the other Bizen branches were drawn into Osafune, the Yoshii kept apart with a manner of their own, and Kagenori is the named, dated hand by whom that manner is most clearly read.
The feature that fixes him is a gunome linked in regular, continuous groupings over a standing itame. The published sources put the school's tell plainly, that its workmanship lies above all in a gunome arranged in an orderly, repeating sequence, and Kagenori's blades carry it as their spine, mixing in pointed elements that give the row a togari-gokoro character and, on the late Kamakura tachi, a choji-midare and a slight reverse tendency. Over the row the work is judged nie-deki rather than the nioi-based manner of Osafune, taking ko-nie, ashi, sunagashi and kinsuji within the ha. This nie is no incidental feature. On one wide, deeply curved tachi with funbari the sources read, through its bold two-character signature and the strong nie within the edge, an aspect of the oldest Bizen, 「刃中の沸が強い出来に古備前の面影を見」, recording that a boldly chiselled Kagenori tachi once in the Date family had even been appraised as Ko-Bizen. It is this orderly linking and nie-laden edge that distinguishes a Yoshii blade, and the sources warn that the strength of the manner led later generations to be mistaken for Mino work.
The jigane beneath the temper is an itame standing somewhat in the grain, at times mixed with o-itame, with ji-nie and on the tanto a tightly forged itame carrying minute ji-nie and a conspicuous mottled jifu. Across several blades Kagenori raises the utsuri that is the school's other great hallmark, a reflection so particular that the published sources describe it as one in which 「刃文の形がそのまま影になったように見える」, the shape of the temper appearing cast as a shadow into the ji. On the kodachi this midare-utsuri stands clearly, echoing the row of the temper above it rather than drifting as an ordinary Bizen reflection would. The shapes carrying this ji and ha range across his record: shinogi-zukuri tachi wide in body with deep sori, funbari and a chu-kissaki; a compact kodachi; and, on the Nanbokucho dated pieces, a wide, thin hira-zukuri wakizashi and tanto elongated in proportion to the width. The boshi follows the temper into the point, entering in midare-komi and turning in ko-maru on the tachi, rounding on the kodachi, and on the tanto rising to a pointed return.
Kagenori is not confined to one register. Alongside the linked gunome the published sources find a quieter, suguha-based face on the kodachi and the dated Joji tanto, a temper built on suguha with a shallow notare into which gunome and ko-gunome are mixed, linking in the same regular tsure manner so the Yoshii character still shows through. On the tanto the row becomes generally connected, with ashi and a little yo, ko-nie adhering well, the nie growing uneven and spilling into the ji, the whole running with fine kinsuji and sunagashi, a vigorous construction the sources call atypical for the school yet unmistakably of it. His blades are closely datable, the Joji 3 wakizashi and Joji 5 tanto among them, which the published sources value as precious material for studying both the lineage and the smith. The long signature Bizen no kuni Yoshii ju Kagenori is recorded as continuing through the Joji, Kanno, Eitoku, Oei and Shocho eras, so that the name spans from the late Kamakura into the mid-Muromachi as the through-line of the school, while two earlier tachi with carved inscriptions dated Koan raise a question the sources hold open as to whether they are Yoshii at all.
The study of Kagenori is, more than for most smiths, a study of the name itself, for it was carried by more than one hand. On one early tachi whose lower inscription is cut away the published sources affirm there is no dispute it is a Kamakura-period Yoshii work, yet caution that 「景則でなければならぬと云う極め手はない」, there being no decisive factor requiring it to be this Kagenori, and present it instead as a representative and typical example of the Ko-Yoshii tradition. On the kodachi the judges read further, appraising it from the nie in both ji and ha and its rich kinsuji and sunagashi as the work of a Kagenori 「初・二代を下らない」, no later than the first or second generation. His bright midare-utsuri, his linked gunome and his nie-laden edge set his work apart within Bizen, holding a distinct line where the surrounding lineages were absorbed into Osafune, and tying his name back through the strong nie to the oldest Bizen rather than to the Osafune mainstream of his own day.
Kagenori's standing is that of a documented Ko-Yoshii hand rather than a famed Kamakura name, his record sitting entirely at the Important Sword rank, with six of his blades designated Juyo across sessions from the twelfth in 1964 to the fiftieth in 2004, recognized steadily over four decades of shinsa. None stand above that tier; there is no National Treasure or Important Cultural Property among them. They are tachi, kodachi, wakizashi and tanto, all signed and several dated, so a collector encounters a smith placed to the year, which for a Nanbokucho Bizen hand is part of the appeal. Of recorded whereabouts the Juyo tachi of the twelfth session, once held by Sano Takashi, is now in the Sano Art Museum, while the others have passed through private hands. A signed, dated Yoshii Kagenori is not beyond reach in the way a great Kamakura blade is; an example comes to market from time to time, and for a collector drawn to the linked gunome, nie-laden edge and reflected utsuri of early Yoshii, one of his dated blades is among the more attainable ways to hold the school's manner in its most exactly knowable form.
Morinori (盛則) — Mainline · 1394-1428. Jūyō. Morinori of the Bizen Yoshii group signed his earliest surviving blade Bizen Province resident Yoshii Morinori and dated it the eighth month of Eiwa 4, a year corresponding to 1378, and from that tachi of the late Nanbokucho his work runs forward into the Oei era of the early fifteenth century in a small body of signed and dated pieces. Because none of his datable work descends beyond the Nanbokucho, the published sources place him among the Ko-Yoshii, the older tier of the school that the NBTHK separates by name from the plainer Yoshii production of the full Muromachi period. The Yoshii group is traditionally held to have begun with Tamenori in the late Kamakura period, though works that far back are exceedingly rare, and within the surviving body it is the Ko-Yoshii pieces of the fourteenth century, Morinori's among them, that carry the school at its finest. One of his katana, whose individual portion of the folded-back signature has been cut away, is appraised from the calligraphic style of the remaining characters as the work of the Ko-Yoshii Morinori who was active around the Meitoku era of the 1390s.
His recognized hand is the school's own face read at its peak, and the published sources locate its heart in two things. The first is the temper, a gunome linked in an orderly, continuous run, of which they write that "the greatest point of appreciation lies in the way the gunome are linked in a regular sequence". On his broader katana this becomes a ko-gunome carried in a regular, repeating line with slight variation in the individual forms, the row mixing in somewhat pointed elements, with ashi and yo entering, the nie standing strongly so that the habuchi loosens here and there into hotsure, and frequent sunagashi running through it with kinsuji entering the temper. On the Eiwa tachi the same hand reads as a gunome-midare mixed with pointed elements, the form already showing the variation that marks his row apart from a placid suguha. The second hallmark lies in the ji, where the school raises an utsuri the published sources call distinctive among all Bizen works, one in which "the very shape of the hardened edge appears as though cast as a shadow" into the steel, so that the reflection seems to repeat the outline of the temper rather than the soft, cloud-like midare-utsuri of the Osafune mainstream.
The jigane beneath that utsuri is an itame that flows and stands somewhat in the grain, at times taking on an ayasugi-like tendency that the published sources count as a further tell of the Yoshii jigane, with ji-nie applied and chikei entering, and on one katana mokume mixed into the itame and the whole forged tightly and well consolidated. Across his recognized work the boshi enters in midare-komi and turns back in a small ko-maru or a slightly larger o-maru, on one blade running off into hakikake at the tip and on another with kinsuji entering the turn. He carves a bo-hi on both faces of his longer blades, terminated in maru-dome on the Eiwa tachi and run off in kaki-nagashi on the later katana. The signatures are long mei cut toward the mune, and where the blade has been shortened the long signature survives folded back as an orikaeshi-mei, the device by which several of his pieces have kept their attribution through the loss of their original tang.
Apart from this prime hand the published sources record a quieter signed register in his Oei tanto, a register the kantei must hold separately from the linked gunome. The dated tanto is hira-zukuri with mitsu-mune, slightly extended in proportion as sun-nobi and with almost no curvature, over an itame that flows toward the edge and is tightly forged throughout, the ji-nie adhering and the temper a narrow suguha in ko-nie, the boshi straight and turning back in a rounded form. On its omote he cut a kawari-hi and on the ura a suken carved in relief within a katana-hi, the relief work giving the small standard-form blade its principal point of interest. The published sources read this tanto as a well-composed work of small, standard form, and value it, together with the Eiwa tachi, as a dated piece that fixes his period of manufacture, the two inscriptions bracketing his career from the late Nanbokucho into Oei.
What sets Morinori apart from the rest of fourteenth-century Bizen is therefore not power or flamboyance but the particular Yoshii combination his own blades carry. While the other Bizen branches were drawn through the Muromachi period into the consolidated Osafune mainstream, the Yoshii group alone continued and held its distinctive linked gunome and its school utsuri, and Morinori stands among the dated Ko-Yoshii smiths whose signed pieces fix that late-Nanbokucho manner. On his finest katana the published sources find not only this smith's hand but the characteristic style of the entire group clearly shown, in the ayasugi-tending jigane, the reflected utsuri and the regular gunome strongly covered in nie with frequent sunagashi, and they judge both ji and ha sound. His name continues forward into the Muromachi Yoshii line beside Kiyonori and the other dated hands of the school, so that he reads as one of the documentary anchors by which the older Ko-Yoshii is told apart from the later production carrying the same name.
Morinori's work survives in a small number of signed and dated pieces, four of them papered to the Juyo rank across the twenty-second, twenty-eighth and fortieth sessions, the inscriptions running from Eiwa 4 in 1378 through the Oei era. The Fujishiro appraisers rate him at the chu-jo saku level, a standing above the average run of the school's hands, and the published sources reserve their warmest assessment for his fortieth-session katana, of which they write that its "ample, robust and sound form is excellent, and along the habuchi strongly lustrous nie glitters, the workmanship outstanding". None of his blades carries one of the higher cultural-property designations, and none carries a recorded daimyo provenance, so his pieces belong to the upper-Juyo tier rather than to the museum-held patrimony of the great Kamakura names. For a private collector this means a dated, signed Ko-Yoshii Morinori, when one of the few survives to come to market, is an attainable rather than an unreachable thing, though it appears only from time to time and rewards patience, valued less for rarity of name than for being a signed and datable witness to the late-Nanbokucho Yoshii hand at its most characteristic.
Naganori (永則) — Mainline · 1429-1441. Jūyō. Naganori was a swordsmith of the Bizen Yoshii group, and the published sources place him in the Eikyo era of 1429 to 1441 and the Choroku era of 1457 to 1460, recording him as the son of Kiyonori and adding a tradition that he later moved to Izumo. The Yoshii group is traditionally said to have begun with Tamenori in the late Kamakura period, though works that far back are exceedingly rare, and it flourished from the Nanbokucho through the Muromachi period as the one Bizen branch that was never drawn into the consolidated Osafune mainstream. His four designated blades are all tachi signed with a bare two-character mei, Naganori, on a shinogi-zukuri form with iori-mune or mitsu-mune and a chu-kissaki, the tang ubu with a kurijiri on his earliest piece and shortened to a kiri-jiri on the latest. They are the work that fixes the early-to-mid Muromachi face of the school, and on one of them the published sources note that the well-ordered jigane and the standing midare-utsuri make it look, at first sight, like "a Bizen blade going back to an earlier age", a deception that only the sakizori of its Muromachi shape betrays.
The recognized Yoshii hand divides into two manners, and Naganori works in both. The published sources name the chief hallmark of the school as a temper in which small gunome run in a regular, continuous sequence, writing that "a major hallmark of Yoshii workmanship is a temper in which small gunome run in a regular linked sequence". His fullest example of this manner, the fortieth-session tachi, carries that ko-gunome in an orderly tsure, the row mixing in angular gunome, pointed togariba and gunome with opened bases, primarily in nioi with ko-nie and, here and there, strongly shining coarse nie, with kinsuji and sunagashi running through the temper. The boshi enters in midare-komi and turns back in a small ko-maru, the nie standing strongly and sweeping into hakikake at the tip. His second manner is a narrow suguha, ordinary in itself and of a kind the published sources say is seen in smiths such as Norimitsu, into which only a slight admixture of small gunome enters. Of that admixture they write that "the places where small gunome are mixed in may be regarded as a characteristic of the Yoshii group", so that even his quietest temper is read as Yoshii by the gunome folded into it.
Beneath the temper the jigane is a ko-itame, densely and tightly forged, with ji-nie applied and chikei entering, and on one of the suguha tachi it takes on a masame tendency near the edge and stands somewhat open across the whole. Over it the school raises an utsuri that the published sources call distinctive among all Bizen works, one in which, as they put it, "the reflection is of a unique kind, as though the very outline of the hardened pattern were cast as a shadow and reflected into the ji". The reflection therefore seems to repeat the shape of the temper rather than to drift as the soft, cloud-like midare-utsuri of the Osafune mainstream. On the suguha pieces the utsuri reads faintly over a closely forged itame with fine ji-nie, the nioiguchi tending tight or showing shizumi, with small ashi entering and slight kinsuji; on the linked-gunome tachi it stands more boldly, paired with the coarse nie and the running sunagashi that the quieter register does not show. He carves a bo-hi on both faces, on his earliest tachi run through with a companion soe-hi alongside the tang, and signs at the haki-omote toward the mune.
These two registers are best held apart in the kantei, since the same smith covers a flamboyant linked midare and a restrained suguha, and the published sources draw the line themselves when they observe that Yoshii workmanship can be divided broadly into the linked-gunome out and the suguha out. His earlier tachi, signed ubu and bearing the tachi-mei, sits between the two: the ko-gunome run there in a slightly irregular tsure with small notare and choji mixed and a tight nioiguchi, the ko-itame densely forged and the midare-utsuri standing distinctly, which is the very combination that makes it read like an older Bizen piece. Oei-and-later Yoshii works, by Naganori and by his fellows alike, are few among extant examples, and it is in part for that scarcity that the published sources value his surviving tachi as the representative pieces of their period. The directory carries several later Naganori in Izumo, consistent with the transmitted move, while in Bizen the name continues into the later Muromachi Yoshii line beside Kiyonori and the other dated hands of the school.
What sets Naganori apart from the wider run of mid-Muromachi Bizen is not force or display but the particular Yoshii combination his own blades carry, the orderly ko-gunome over the reflected utsuri, present even where the temper quiets to suguha. The published sources find in his work the characteristics of the whole group fully manifested, and where the suguha alone might pass for the ordinary straight temper of a Norimitsu, the small gunome mixed through it and the shadow-cast utsuri standing behind it return the attribution to Yoshii. He stands, with Kiyonori his father and Morinori among the older Ko-Yoshii, as one of the signed and locatable hands by which the school's early-to-mid Muromachi manner is told, a documentary anchor rather than a name carried on grand provenance.
Naganori's work survives in a small number of signed tachi, four of them papered to the Juyo rank across the tenth, twenty-second, twenty-fourth and fortieth sessions, the earliest designated in 1963 and the latest in 1994. The Fujishiro appraisers rate him at the chu-jo saku level, a standing above the average run of the school's hands, and the published sources reserve their warmest phrasing for the fortieth-session tachi, of which they write that both ji and ha are sound and "both ji and ha are excellent". None of his blades carries one of the higher cultural-property designations, and none carries a recorded daimyo provenance, so his pieces belong to the upper-Juyo tier rather than to the museum-held patrimony of the great Kamakura names; among recorded holders his powerful odachi is kept in the Tokugawa Art Museum, while the designated tachi have passed through private hands in Okayama, Nagasaki, Aichi and Tokyo. For a private collector this means a signed Yoshii Naganori, when one of the few survives to come to market, is an attainable rather than an unreachable thing, though it appears only from time to time and rewards patience, valued less for the weight of its name than for being a signed witness to the Yoshii hand at its early-to-mid Muromachi best.
Other smiths
Kagenori (景則) — Mainline · 1381-1384. Smith of the Bizen Yoshii School.
Kagenori (景則) — Mainline · 1317-1319. Smith of the Bizen Yoshii School.
Kiyonori (清則) — Mainline · 1394-1428. Kiyonori signed as Fujiwara Kiyonori and worked within the Bizen Yoshii school, a lineage traditionally said to have begun with Tamenori in the late Kamakura period. While works traceable to the Kamakura era are exceedingly rare, pieces produced through the Nanbokucho period are classified as *Ko-Yoshii*, and those of the Muromachi period simply as Yoshii. Unlike other Bizen lineages that were consolidated into Osafune during the Muromachi period, the Yoshii school alone continued independently, maintaining a distinctive style. Kiyonori is transmitted as a son of Yoshinori and was active from the Kakitsu through Hotoku eras, with dated works spanning 1442 to 1451.
The hallmark of Kiyonori's work lies in a *hamon* of *ko-gunome* running in a regular, continuous sequence, a defining trait of the Yoshii school that he consistently exemplifies across both *tachi* and *wakizashi*. His *kitae* is typically a tight *itame-hada* mixed with *mokume*, showing fine *ji-nie* densely applied, and bearing the school's characteristic *midare-utsuri* -- an effect in which the form of the *hamon* itself appears projected as a shadow into the *ji*. The *boshi* enters in a corresponding *midare-komi* manner, and the signature makes frequent use of *saka-tagane* (reverse chisel strokes). In several examples the *nioiguchi* is soft, with *ko-nie* and *sunagashi*, imparting what the NBTHK has described as an archaic flavor approaching the artistic range of Ko-Yoshii. His *hira-zukuri* wakizashi demonstrate a *suguha* mixed with small *gunome*, and one such piece preserves a finely executed *ukibori* of *shin no kurikara* -- horimono being extremely rare in Yoshii school production.
Kiyonori's dated works are of high documentary value for the study of the Yoshii school, and several have been praised for their thick *kasane*, sound *kenzen* condition, and strong sense of hand. That his work at times approaches Ko-Yoshii caliber within a Muromachi-period framework attests to the quality of craftsmanship he sustained.
Masanori (昌則) — Mainline · 1444-1449. Smith of the Bizen Yoshii School.
Masanori (真則) — Mainline. Smith of the Bizen Yoshii School.
Mitsunori (光則) — Mainline · 1368-1375. Smith of the Bizen Yoshii School.
Narinori (成則) — Mainline · 1394-1428. Smith of the Bizen Yoshii School.
Noritsuna (則綱) — Mainline · 1390-1394. Noritsuna worked within the Yoshii group of Bizen Province, a branch whose origins remain the subject of ongoing study. Sword reference works identify the earliest generation as beginning with dated examples from the Joji era (1362-1368), with subsequent generations active around the Meitoku and Kansho eras; however, as the NBTHK has observed, "there remains room for further study regarding how these generations should be distinguished." Signed and dated tachi by Noritsuna are exceedingly rare, lending his extant *nenki-saku* particular importance as documentary material.
The works attributed to Noritsuna divide broadly into two modes: those presenting a linked *ko-gunome* temper and those in *suguha*. In the former style, a small-patterned continuous *gunome* constitutes, in the NBTHK's assessment, "a hallmark unique to this group." Yet Noritsuna's earlier productions are distinguished from later Yoshii-school work by conspicuously stronger *nie* and vigorous internal activities -- *sunagashi* and *kinsuji* working clearly within the tempered area -- characteristics that mark what the examiners term an "old Yoshii" work free of later-period mannerisms. The *kitae* is consistently *itame-hada* mixed with *mokume* or *masame*, tending toward *hada-dachi*, with *ji-nie* and, on certain pieces, *utsuri*. In the *suguha* mode, the *nioiguchi* is tight with *ko-nie* and occasional *hotsure*, yielding a quieter but no less accomplished expression.
Noritsuna's surviving corpus spans both tachi and *kodachi* forms from the late Nanbokucho into the early Muromachi period, with dated inscriptions from Joji 3 (1364) and the Meitoku era (1391-1392). These pieces preserve clearly legible signatures cut in bold strokes toward the *mune* side, and as the NBTHK has noted, they "constitute valuable documentary material" for the Yoshii school during a transitional era in Bizen sword-making.
Shigenori (重則) — Mainline · 1368-1375. Smith of the Bizen Yoshii School.
Suenori (末則) — Mainline · 1368-1375. Smith of the Bizen Yoshii School.
Yoshinori (吉則) — Mainline · 1384-1387. Smith of the Bizen Yoshii School.
Yoshinori (吉則) — Mainline · 1429-1441. Smith of the Bizen Yoshii School.
Kagekuni (景國) — Mainline · 1394-1428. Smith of the Bizen Yoshii School.
Kagenori (景則) — Mainline · 1492-1501. Smith of the Bizen Yoshii School.
Kagetaka (景高) — Mainline · 1293-1299. Smith of the Bizen Yoshii School.
Kagetoshi (景利) — Mainline · 1444-1449. Smith of the Bizen Yoshii School.
Kageyasu (景安) — Mainline · 1329-1331. Smith of the Bizen Yoshii School.
Kageyasu (景安) — Mainline · 1389-1390. Smith of the Bizen Yoshii School.
Kageyori (景依) — Mainline · 1326-1329. Smith of the Bizen Yoshii School.
Mitsunori (光則) — Mainline · 1356-1361. Smith of the Bizen Yoshii School.
Naganori (長則) — Mainline · 1532-1555. Smith of the Bizen Yoshii School.
Naganori (永則) — Mainline · 1688-1704. Smith of the Bizen Yoshii School.
Naritsuna (成綱) — Mainline · 1381-1384. Smith of the Bizen Yoshii School.
Norinao (則直) — Mainline · 1334-1338. Smith of the Bizen Yoshii School.
Norinori (儀則) — Mainline · 1469-1487. Smith of the Bizen Yoshii School.
Noritsuna (則綱) — Mainline · 1441-1444. Smith of the Bizen Yoshii School.
Noritsune (則恒) — Mainline · 1441-1444. Smith of the Bizen Yoshii School.
Norizane (則眞) — Mainline · 1394-1428. Smith of the Bizen Yoshii School.
Suenori (末則) — Mainline · 1394-1428. Smith of the Bizen Yoshii School.
Tamenobu (爲信) — Mainline · 1801-1804. Smith of the Bizen Yoshii School.
Tamenori (爲則) — Mainline · 1312-1317. Smith of the Bizen Yoshii School.
Tamenori (爲則) — Mainline · 1681-1684. Smith of the Bizen Yoshii School.
Tomonori (友則) — Mainline · 1381-1384. Smith of the Bizen Yoshii School.
Toshimitsu (俊光) — Mainline · 1329-1331. Smith of the Bizen Yoshii School.
Toshimitsu (俊光) — Mainline · 1345-1350. Smith of the Bizen Yoshii School.
Toyo (豊) — Mainline · 987-1596. Smith of the Bizen Yoshii School.
Toyonori (豊則) — Mainline · 1375-1381. Smith of the Bizen Yoshii School.
Toyonori (豊則) — Mainline · 1394-1428. Smith of the Bizen Yoshii School.
Ujinori (氏則) — Mainline · 1381-1384. Smith of the Bizen Yoshii School.
Yasumune (安宗) — Mainline · 1390-1394. Smith of the Bizen Yoshii School.
Yoshinobu (吉信) — Mainline · 1394-1428. Smith of the Bizen Yoshii School.
Yoshinori (吉則) — Mainline · 1394-1428. Smith of the Bizen Yoshii School.
Yoshinori (吉則) — Mainline · 1449-1452. Smith of the Bizen Yoshii School.
Live·Yoshii lineage
吉井
The Bizen Yoshii School
On the Yoshii river east of Osafune ran a separate Bizen current. Founded in the late Kamakura period and working through the Muromachi age, the Yoshii smiths — Naganori the apex among them — are known above all for a disciplined ko-gunome hamon of even, repeating rhythm: a school signature so consistent that attributions often rest on it alone.
Era
1280 — 1550
Members
49
Kokuhō
0
Jūbun
0
Jūbi
1
Tokujū
1
Jūyō
40
For Sale
2
49smiths0Kokuhō0Jūbun1Jūbi1Tokujū40Jūyō
The Bizen Yoshii School (吉井) Lineage
The The Bizen Yoshii School (吉井), active 1280–1550 in Bizen Province across 49 documented smiths: 0 Kokuhō (National Treasures), 0 Jūbun, 1 Jūbi, 1 Tokubetsu Jūyō, 40 Jūyō.
Phase 1 · The Bizen Yoshii School (吉井) · 1280 – 1550
Kiyonori (清則) — Mainline · 1429-1441. Jūyō. A tachi by Kiyonori dated Hotoku 1, the tenth month of 1449, carries the full signature Bizen Province Yoshii Fujiwara Kiyonori, naming at once the man, his family and his school. Kiyonori is a smith of the Bizen Yoshii group working through the middle Muromachi period, his dated blades running from Eikyo 3 in 1431 across the Kakitsu, Bun'an, Hotoku and Kyotoku years into the later 1450s. The signature compendia record him as the second to bear the name, a son of Yoshinori of the Yoshii line, and note that he later moved to Izumo. His work is the textbook face of a lineage that holds an unusual place in late Bizen history. The Yoshii group is traditionally said to have begun with Tamenori in the late Kamakura period, though works that far back are exceedingly rare; pieces no later than the Nanbokucho are classed as Ko-Yoshii, and the Muromachi production simply as Yoshii. While the other Bizen branches were drawn into Osafune, the Yoshii alone kept apart with a manner of their own, and Kiyonori is among the named, dated hands by which that manner is read.
The feature that fixes him is a small gunome linked in a regular, continuous run. The published sources put it plainly, that this lineage's style lies above all in a temper of *ko-gunome* connecting in an orderly sequence, 「小互の目が規則的に連れる」, and Kiyonori's blades carry it as their spine. Over a standing itame he tempers the row in *ko-nie*, mixing pointed and angular elements that give it a *togari-gokoro* character, the temper running slightly *ko-midare* near the base, with *ashi* entering and a soft, bright *nioiguchi*. On his finest dated tachi the temper takes on *sunagashi* and a *yubashiri*-like patch in the upper half, the row of small gunome running the length of the blade in the even, repeating cadence the school made its signature. It is this orderly linking, not flamboyance or scale, that distinguishes a Yoshii blade, and Kiyonori's hand renders it cleanly. His mei are cut with a habit the sources count among the school tells, many strokes driven in reverse against the chisel, so that even the signature carries a Yoshii mark.
The jigane beneath the temper is a tight *itame* mixed with *mokume*, standing somewhat in the grain, with fine *ji-nie* densely applied and *chikei* entering. Across it Kiyonori raises the *utsuri* that is the school's other great hallmark, a reflection so particular that the published sources describe it as if the very form of the hardened edge were projected straight into the *ji*, 「その刃文の形をそのまま地に映し出したような、一派特有の映り」. On the typical blades this *midare-utsuri* stands prominently, echoing the shape of the temper above it rather than drifting as an ordinary Bizen reflection would. The shape carrying this *ji* and *ha* is a *shinogi-zukuri* tachi with *iori-mune*, standard in width with a clear taper toward the point, the *kasane* somewhat thick, the *sori* rather deep with *sakizori* added and a *chu-kissaki*, a *bo-hi* carved on both faces and stopped at the base. The *boshi* enters in *midare-komi* and turns in *ko-maru*, at times with a slightly pointed tendency or a Jizo-like return, following the irregularity of the temper into the point rather than resolving it.
Kiyonori is not confined to one register. The published sources name a second face within the Yoshii record, a narrow *suguha* carrying only a slight admixture of small gunome, and he works it cleanly. A Kyotoku tachi is built in *shinogi-zukuri* with *mitsu-mune*, the *ji* a tight *ko-itame* with *ji-nie* and a distinct *utsuri*, the temper a narrow *suguha* with a little *ko-gunome* and *ko-nie*. A Bun'an wakizashi is *hira-zukuri*, wide and slightly extended with almost no curvature, the *ji* a well-forged *itame* of whitish tone, the temper again a narrow *suguha* mixed with slight gunome, with small *ashi* and *ko-nie* and a *sugu ko-maru boshi*, carved on the front within the *hitsu* with a relief *kurikara*. The published sources read this *suguha* not as a departure but as the other documented facet of the same school style, the calm half of a hand whose louder half is the linked gunome. His blades are also closely datable, the inscriptions spanning more than two decades, which the sources value as fine documentary material for studying the smith.
Within this body of work one blade stands apart, a Bun'an wakizashi the published sources single out as his high point. Its forging is fine, a tight *ko-itame* mixed with *itame* and interwoven with *chikei* and *ji-nie*, raising a standing *midare-utsuri*, and the temper a *ko-gunome* with *ko-ashi* that becomes somewhat reverse-slanting, *nioi-gachi* with *ko-nie*. The sources judge it well forged and, for a Yoshii work of the Muromachi period, unusually well covered in *nie*, holding that but for its wakizashi proportions its workmanship approaches the range of Ko-Yoshii itself, 「脇指姿の点を除けば古吉井の作域にせまる出来ばえで見事である」. Most of his record is the plainer, repeating production that makes the school recognizable, but in his best moments his hand reaches back toward the older, finer Yoshii standard. The conspicuous representative works, with their thick *kasane*, soft *nioiguchi* and reverse-chisel mei, the sources call the typical Yoshii blade in which the school's character shows most clearly, 「銘字には逆鏨を多用しているなど、吉井派の特色が顕著に表れた典型作」, while this one wakizashi shows how far that character could be pushed. His bright *midare-utsuri*, linked *ko-gunome* and reverse-chisel signature set his work apart within Bizen, holding a distinct line where the surrounding lineages were absorbed into Osafune.
Kiyonori's standing is that of a documented Muromachi master rather than a famed Kamakura name, his record sitting entirely at the Important Sword rank, with Fujishiro grading his work *chu-saku*. Eight of his blades are designated Juyo, papered across sessions from the fifteenth in 1967 to the sixty-seventh in 2021, a span showing his work recognized steadily over half a century of shinsa; none stand above that tier, with no National Treasure or Important Cultural Property among them. They are tachi and wakizashi both, all signed and most dated, so a buyer encounters a smith who can be placed to the year, which for a Muromachi Bizen hand is part of the appeal. Of recorded whereabouts one of his Juyo tachi is held by Yasukuni Shrine, the rest in private and collectors' hands. A signed, dated Yoshii Kiyonori is not beyond reach in the way a great Kamakura blade is; examples come to market from time to time, and for a collector drawn to the linked *ko-gunome* and reflected *utsuri* of late Bizen, one of his dated tachi is among the more attainable ways to hold the Yoshii manner in its clearest form.
Sanenori (眞則) — Mainline · 1345-1350. Jūbi, Jūyō. Smith of the Bizen Yoshii School.
Naganori (長則) — Mainline · 1504-1521. Tokujū, Jūyō. Smith of the Bizen Yoshii School.
Kagenori (景則) — Mainline · 1469-1487. Jūyō. A tanto by Kagenori dated Joji 5, the second month of 1366, carries the full signature Bizen no kuni Yoshii ju Kagenori, the two characters of the name cut left and right of the second mekugi-ana with a fine chisel and the date set to the reverse. Kagenori is a smith of the Bizen Yoshii group, the lineage that worked at Yoshii, the locality facing Osafune across the Yoshii River, and his signed and dated blades run from the late Kamakura period through the Nanbokucho across the Kareki, Joji, Kanno, Eitoku and later years. Among the craftsmen of the group his is the name that endured the longest, the published sources noting that within the Yoshii smiths it is Kagenori whose lineage-name 「名跡が最も長く続いている」, with one account even holding him 「一説に吉井の嫡流」, the main line of the school. The group is traditionally said to have begun with Tamenori in the late Kamakura period, though works that far back are exceedingly rare, and so pieces no later than the Nanbokucho are classed as Ko-Yoshii and the Muromachi production simply as Yoshii. While the other Bizen branches were drawn into Osafune, the Yoshii kept apart with a manner of their own, and Kagenori is the named, dated hand by whom that manner is most clearly read.
The feature that fixes him is a gunome linked in regular, continuous groupings over a standing itame. The published sources put the school's tell plainly, that its workmanship lies above all in a gunome arranged in an orderly, repeating sequence, and Kagenori's blades carry it as their spine, mixing in pointed elements that give the row a togari-gokoro character and, on the late Kamakura tachi, a choji-midare and a slight reverse tendency. Over the row the work is judged nie-deki rather than the nioi-based manner of Osafune, taking ko-nie, ashi, sunagashi and kinsuji within the ha. This nie is no incidental feature. On one wide, deeply curved tachi with funbari the sources read, through its bold two-character signature and the strong nie within the edge, an aspect of the oldest Bizen, 「刃中の沸が強い出来に古備前の面影を見」, recording that a boldly chiselled Kagenori tachi once in the Date family had even been appraised as Ko-Bizen. It is this orderly linking and nie-laden edge that distinguishes a Yoshii blade, and the sources warn that the strength of the manner led later generations to be mistaken for Mino work.
The jigane beneath the temper is an itame standing somewhat in the grain, at times mixed with o-itame, with ji-nie and on the tanto a tightly forged itame carrying minute ji-nie and a conspicuous mottled jifu. Across several blades Kagenori raises the utsuri that is the school's other great hallmark, a reflection so particular that the published sources describe it as one in which 「刃文の形がそのまま影になったように見える」, the shape of the temper appearing cast as a shadow into the ji. On the kodachi this midare-utsuri stands clearly, echoing the row of the temper above it rather than drifting as an ordinary Bizen reflection would. The shapes carrying this ji and ha range across his record: shinogi-zukuri tachi wide in body with deep sori, funbari and a chu-kissaki; a compact kodachi; and, on the Nanbokucho dated pieces, a wide, thin hira-zukuri wakizashi and tanto elongated in proportion to the width. The boshi follows the temper into the point, entering in midare-komi and turning in ko-maru on the tachi, rounding on the kodachi, and on the tanto rising to a pointed return.
Kagenori is not confined to one register. Alongside the linked gunome the published sources find a quieter, suguha-based face on the kodachi and the dated Joji tanto, a temper built on suguha with a shallow notare into which gunome and ko-gunome are mixed, linking in the same regular tsure manner so the Yoshii character still shows through. On the tanto the row becomes generally connected, with ashi and a little yo, ko-nie adhering well, the nie growing uneven and spilling into the ji, the whole running with fine kinsuji and sunagashi, a vigorous construction the sources call atypical for the school yet unmistakably of it. His blades are closely datable, the Joji 3 wakizashi and Joji 5 tanto among them, which the published sources value as precious material for studying both the lineage and the smith. The long signature Bizen no kuni Yoshii ju Kagenori is recorded as continuing through the Joji, Kanno, Eitoku, Oei and Shocho eras, so that the name spans from the late Kamakura into the mid-Muromachi as the through-line of the school, while two earlier tachi with carved inscriptions dated Koan raise a question the sources hold open as to whether they are Yoshii at all.
The study of Kagenori is, more than for most smiths, a study of the name itself, for it was carried by more than one hand. On one early tachi whose lower inscription is cut away the published sources affirm there is no dispute it is a Kamakura-period Yoshii work, yet caution that 「景則でなければならぬと云う極め手はない」, there being no decisive factor requiring it to be this Kagenori, and present it instead as a representative and typical example of the Ko-Yoshii tradition. On the kodachi the judges read further, appraising it from the nie in both ji and ha and its rich kinsuji and sunagashi as the work of a Kagenori 「初・二代を下らない」, no later than the first or second generation. His bright midare-utsuri, his linked gunome and his nie-laden edge set his work apart within Bizen, holding a distinct line where the surrounding lineages were absorbed into Osafune, and tying his name back through the strong nie to the oldest Bizen rather than to the Osafune mainstream of his own day.
Kagenori's standing is that of a documented Ko-Yoshii hand rather than a famed Kamakura name, his record sitting entirely at the Important Sword rank, with six of his blades designated Juyo across sessions from the twelfth in 1964 to the fiftieth in 2004, recognized steadily over four decades of shinsa. None stand above that tier; there is no National Treasure or Important Cultural Property among them. They are tachi, kodachi, wakizashi and tanto, all signed and several dated, so a collector encounters a smith placed to the year, which for a Nanbokucho Bizen hand is part of the appeal. Of recorded whereabouts the Juyo tachi of the twelfth session, once held by Sano Takashi, is now in the Sano Art Museum, while the others have passed through private hands. A signed, dated Yoshii Kagenori is not beyond reach in the way a great Kamakura blade is; an example comes to market from time to time, and for a collector drawn to the linked gunome, nie-laden edge and reflected utsuri of early Yoshii, one of his dated blades is among the more attainable ways to hold the school's manner in its most exactly knowable form.
Morinori (盛則) — Mainline · 1394-1428. Jūyō. Morinori of the Bizen Yoshii group signed his earliest surviving blade Bizen Province resident Yoshii Morinori and dated it the eighth month of Eiwa 4, a year corresponding to 1378, and from that tachi of the late Nanbokucho his work runs forward into the Oei era of the early fifteenth century in a small body of signed and dated pieces. Because none of his datable work descends beyond the Nanbokucho, the published sources place him among the Ko-Yoshii, the older tier of the school that the NBTHK separates by name from the plainer Yoshii production of the full Muromachi period. The Yoshii group is traditionally held to have begun with Tamenori in the late Kamakura period, though works that far back are exceedingly rare, and within the surviving body it is the Ko-Yoshii pieces of the fourteenth century, Morinori's among them, that carry the school at its finest. One of his katana, whose individual portion of the folded-back signature has been cut away, is appraised from the calligraphic style of the remaining characters as the work of the Ko-Yoshii Morinori who was active around the Meitoku era of the 1390s.
His recognized hand is the school's own face read at its peak, and the published sources locate its heart in two things. The first is the temper, a gunome linked in an orderly, continuous run, of which they write that "the greatest point of appreciation lies in the way the gunome are linked in a regular sequence". On his broader katana this becomes a ko-gunome carried in a regular, repeating line with slight variation in the individual forms, the row mixing in somewhat pointed elements, with ashi and yo entering, the nie standing strongly so that the habuchi loosens here and there into hotsure, and frequent sunagashi running through it with kinsuji entering the temper. On the Eiwa tachi the same hand reads as a gunome-midare mixed with pointed elements, the form already showing the variation that marks his row apart from a placid suguha. The second hallmark lies in the ji, where the school raises an utsuri the published sources call distinctive among all Bizen works, one in which "the very shape of the hardened edge appears as though cast as a shadow" into the steel, so that the reflection seems to repeat the outline of the temper rather than the soft, cloud-like midare-utsuri of the Osafune mainstream.
The jigane beneath that utsuri is an itame that flows and stands somewhat in the grain, at times taking on an ayasugi-like tendency that the published sources count as a further tell of the Yoshii jigane, with ji-nie applied and chikei entering, and on one katana mokume mixed into the itame and the whole forged tightly and well consolidated. Across his recognized work the boshi enters in midare-komi and turns back in a small ko-maru or a slightly larger o-maru, on one blade running off into hakikake at the tip and on another with kinsuji entering the turn. He carves a bo-hi on both faces of his longer blades, terminated in maru-dome on the Eiwa tachi and run off in kaki-nagashi on the later katana. The signatures are long mei cut toward the mune, and where the blade has been shortened the long signature survives folded back as an orikaeshi-mei, the device by which several of his pieces have kept their attribution through the loss of their original tang.
Apart from this prime hand the published sources record a quieter signed register in his Oei tanto, a register the kantei must hold separately from the linked gunome. The dated tanto is hira-zukuri with mitsu-mune, slightly extended in proportion as sun-nobi and with almost no curvature, over an itame that flows toward the edge and is tightly forged throughout, the ji-nie adhering and the temper a narrow suguha in ko-nie, the boshi straight and turning back in a rounded form. On its omote he cut a kawari-hi and on the ura a suken carved in relief within a katana-hi, the relief work giving the small standard-form blade its principal point of interest. The published sources read this tanto as a well-composed work of small, standard form, and value it, together with the Eiwa tachi, as a dated piece that fixes his period of manufacture, the two inscriptions bracketing his career from the late Nanbokucho into Oei.
What sets Morinori apart from the rest of fourteenth-century Bizen is therefore not power or flamboyance but the particular Yoshii combination his own blades carry. While the other Bizen branches were drawn through the Muromachi period into the consolidated Osafune mainstream, the Yoshii group alone continued and held its distinctive linked gunome and its school utsuri, and Morinori stands among the dated Ko-Yoshii smiths whose signed pieces fix that late-Nanbokucho manner. On his finest katana the published sources find not only this smith's hand but the characteristic style of the entire group clearly shown, in the ayasugi-tending jigane, the reflected utsuri and the regular gunome strongly covered in nie with frequent sunagashi, and they judge both ji and ha sound. His name continues forward into the Muromachi Yoshii line beside Kiyonori and the other dated hands of the school, so that he reads as one of the documentary anchors by which the older Ko-Yoshii is told apart from the later production carrying the same name.
Morinori's work survives in a small number of signed and dated pieces, four of them papered to the Juyo rank across the twenty-second, twenty-eighth and fortieth sessions, the inscriptions running from Eiwa 4 in 1378 through the Oei era. The Fujishiro appraisers rate him at the chu-jo saku level, a standing above the average run of the school's hands, and the published sources reserve their warmest assessment for his fortieth-session katana, of which they write that its "ample, robust and sound form is excellent, and along the habuchi strongly lustrous nie glitters, the workmanship outstanding". None of his blades carries one of the higher cultural-property designations, and none carries a recorded daimyo provenance, so his pieces belong to the upper-Juyo tier rather than to the museum-held patrimony of the great Kamakura names. For a private collector this means a dated, signed Ko-Yoshii Morinori, when one of the few survives to come to market, is an attainable rather than an unreachable thing, though it appears only from time to time and rewards patience, valued less for rarity of name than for being a signed and datable witness to the late-Nanbokucho Yoshii hand at its most characteristic.
Naganori (永則) — Mainline · 1429-1441. Jūyō. Naganori was a swordsmith of the Bizen Yoshii group, and the published sources place him in the Eikyo era of 1429 to 1441 and the Choroku era of 1457 to 1460, recording him as the son of Kiyonori and adding a tradition that he later moved to Izumo. The Yoshii group is traditionally said to have begun with Tamenori in the late Kamakura period, though works that far back are exceedingly rare, and it flourished from the Nanbokucho through the Muromachi period as the one Bizen branch that was never drawn into the consolidated Osafune mainstream. His four designated blades are all tachi signed with a bare two-character mei, Naganori, on a shinogi-zukuri form with iori-mune or mitsu-mune and a chu-kissaki, the tang ubu with a kurijiri on his earliest piece and shortened to a kiri-jiri on the latest. They are the work that fixes the early-to-mid Muromachi face of the school, and on one of them the published sources note that the well-ordered jigane and the standing midare-utsuri make it look, at first sight, like "a Bizen blade going back to an earlier age", a deception that only the sakizori of its Muromachi shape betrays.
The recognized Yoshii hand divides into two manners, and Naganori works in both. The published sources name the chief hallmark of the school as a temper in which small gunome run in a regular, continuous sequence, writing that "a major hallmark of Yoshii workmanship is a temper in which small gunome run in a regular linked sequence". His fullest example of this manner, the fortieth-session tachi, carries that ko-gunome in an orderly tsure, the row mixing in angular gunome, pointed togariba and gunome with opened bases, primarily in nioi with ko-nie and, here and there, strongly shining coarse nie, with kinsuji and sunagashi running through the temper. The boshi enters in midare-komi and turns back in a small ko-maru, the nie standing strongly and sweeping into hakikake at the tip. His second manner is a narrow suguha, ordinary in itself and of a kind the published sources say is seen in smiths such as Norimitsu, into which only a slight admixture of small gunome enters. Of that admixture they write that "the places where small gunome are mixed in may be regarded as a characteristic of the Yoshii group", so that even his quietest temper is read as Yoshii by the gunome folded into it.
Beneath the temper the jigane is a ko-itame, densely and tightly forged, with ji-nie applied and chikei entering, and on one of the suguha tachi it takes on a masame tendency near the edge and stands somewhat open across the whole. Over it the school raises an utsuri that the published sources call distinctive among all Bizen works, one in which, as they put it, "the reflection is of a unique kind, as though the very outline of the hardened pattern were cast as a shadow and reflected into the ji". The reflection therefore seems to repeat the shape of the temper rather than to drift as the soft, cloud-like midare-utsuri of the Osafune mainstream. On the suguha pieces the utsuri reads faintly over a closely forged itame with fine ji-nie, the nioiguchi tending tight or showing shizumi, with small ashi entering and slight kinsuji; on the linked-gunome tachi it stands more boldly, paired with the coarse nie and the running sunagashi that the quieter register does not show. He carves a bo-hi on both faces, on his earliest tachi run through with a companion soe-hi alongside the tang, and signs at the haki-omote toward the mune.
These two registers are best held apart in the kantei, since the same smith covers a flamboyant linked midare and a restrained suguha, and the published sources draw the line themselves when they observe that Yoshii workmanship can be divided broadly into the linked-gunome out and the suguha out. His earlier tachi, signed ubu and bearing the tachi-mei, sits between the two: the ko-gunome run there in a slightly irregular tsure with small notare and choji mixed and a tight nioiguchi, the ko-itame densely forged and the midare-utsuri standing distinctly, which is the very combination that makes it read like an older Bizen piece. Oei-and-later Yoshii works, by Naganori and by his fellows alike, are few among extant examples, and it is in part for that scarcity that the published sources value his surviving tachi as the representative pieces of their period. The directory carries several later Naganori in Izumo, consistent with the transmitted move, while in Bizen the name continues into the later Muromachi Yoshii line beside Kiyonori and the other dated hands of the school.
What sets Naganori apart from the wider run of mid-Muromachi Bizen is not force or display but the particular Yoshii combination his own blades carry, the orderly ko-gunome over the reflected utsuri, present even where the temper quiets to suguha. The published sources find in his work the characteristics of the whole group fully manifested, and where the suguha alone might pass for the ordinary straight temper of a Norimitsu, the small gunome mixed through it and the shadow-cast utsuri standing behind it return the attribution to Yoshii. He stands, with Kiyonori his father and Morinori among the older Ko-Yoshii, as one of the signed and locatable hands by which the school's early-to-mid Muromachi manner is told, a documentary anchor rather than a name carried on grand provenance.
Naganori's work survives in a small number of signed tachi, four of them papered to the Juyo rank across the tenth, twenty-second, twenty-fourth and fortieth sessions, the earliest designated in 1963 and the latest in 1994. The Fujishiro appraisers rate him at the chu-jo saku level, a standing above the average run of the school's hands, and the published sources reserve their warmest phrasing for the fortieth-session tachi, of which they write that both ji and ha are sound and "both ji and ha are excellent". None of his blades carries one of the higher cultural-property designations, and none carries a recorded daimyo provenance, so his pieces belong to the upper-Juyo tier rather than to the museum-held patrimony of the great Kamakura names; among recorded holders his powerful odachi is kept in the Tokugawa Art Museum, while the designated tachi have passed through private hands in Okayama, Nagasaki, Aichi and Tokyo. For a private collector this means a signed Yoshii Naganori, when one of the few survives to come to market, is an attainable rather than an unreachable thing, though it appears only from time to time and rewards patience, valued less for the weight of its name than for being a signed witness to the Yoshii hand at its early-to-mid Muromachi best.
Other smiths
Kagenori (景則) — Mainline · 1381-1384. Smith of the Bizen Yoshii School.
Kagenori (景則) — Mainline · 1317-1319. Smith of the Bizen Yoshii School.
Kiyonori (清則) — Mainline · 1394-1428. Kiyonori signed as Fujiwara Kiyonori and worked within the Bizen Yoshii school, a lineage traditionally said to have begun with Tamenori in the late Kamakura period. While works traceable to the Kamakura era are exceedingly rare, pieces produced through the Nanbokucho period are classified as *Ko-Yoshii*, and those of the Muromachi period simply as Yoshii. Unlike other Bizen lineages that were consolidated into Osafune during the Muromachi period, the Yoshii school alone continued independently, maintaining a distinctive style. Kiyonori is transmitted as a son of Yoshinori and was active from the Kakitsu through Hotoku eras, with dated works spanning 1442 to 1451.
The hallmark of Kiyonori's work lies in a *hamon* of *ko-gunome* running in a regular, continuous sequence, a defining trait of the Yoshii school that he consistently exemplifies across both *tachi* and *wakizashi*. His *kitae* is typically a tight *itame-hada* mixed with *mokume*, showing fine *ji-nie* densely applied, and bearing the school's characteristic *midare-utsuri* -- an effect in which the form of the *hamon* itself appears projected as a shadow into the *ji*. The *boshi* enters in a corresponding *midare-komi* manner, and the signature makes frequent use of *saka-tagane* (reverse chisel strokes). In several examples the *nioiguchi* is soft, with *ko-nie* and *sunagashi*, imparting what the NBTHK has described as an archaic flavor approaching the artistic range of Ko-Yoshii. His *hira-zukuri* wakizashi demonstrate a *suguha* mixed with small *gunome*, and one such piece preserves a finely executed *ukibori* of *shin no kurikara* -- horimono being extremely rare in Yoshii school production.
Kiyonori's dated works are of high documentary value for the study of the Yoshii school, and several have been praised for their thick *kasane*, sound *kenzen* condition, and strong sense of hand. That his work at times approaches Ko-Yoshii caliber within a Muromachi-period framework attests to the quality of craftsmanship he sustained.
Masanori (昌則) — Mainline · 1444-1449. Smith of the Bizen Yoshii School.
Masanori (真則) — Mainline. Smith of the Bizen Yoshii School.
Mitsunori (光則) — Mainline · 1368-1375. Smith of the Bizen Yoshii School.
Narinori (成則) — Mainline · 1394-1428. Smith of the Bizen Yoshii School.
Noritsuna (則綱) — Mainline · 1390-1394. Noritsuna worked within the Yoshii group of Bizen Province, a branch whose origins remain the subject of ongoing study. Sword reference works identify the earliest generation as beginning with dated examples from the Joji era (1362-1368), with subsequent generations active around the Meitoku and Kansho eras; however, as the NBTHK has observed, "there remains room for further study regarding how these generations should be distinguished." Signed and dated tachi by Noritsuna are exceedingly rare, lending his extant *nenki-saku* particular importance as documentary material.
The works attributed to Noritsuna divide broadly into two modes: those presenting a linked *ko-gunome* temper and those in *suguha*. In the former style, a small-patterned continuous *gunome* constitutes, in the NBTHK's assessment, "a hallmark unique to this group." Yet Noritsuna's earlier productions are distinguished from later Yoshii-school work by conspicuously stronger *nie* and vigorous internal activities -- *sunagashi* and *kinsuji* working clearly within the tempered area -- characteristics that mark what the examiners term an "old Yoshii" work free of later-period mannerisms. The *kitae* is consistently *itame-hada* mixed with *mokume* or *masame*, tending toward *hada-dachi*, with *ji-nie* and, on certain pieces, *utsuri*. In the *suguha* mode, the *nioiguchi* is tight with *ko-nie* and occasional *hotsure*, yielding a quieter but no less accomplished expression.
Noritsuna's surviving corpus spans both tachi and *kodachi* forms from the late Nanbokucho into the early Muromachi period, with dated inscriptions from Joji 3 (1364) and the Meitoku era (1391-1392). These pieces preserve clearly legible signatures cut in bold strokes toward the *mune* side, and as the NBTHK has noted, they "constitute valuable documentary material" for the Yoshii school during a transitional era in Bizen sword-making.
Shigenori (重則) — Mainline · 1368-1375. Smith of the Bizen Yoshii School.
Suenori (末則) — Mainline · 1368-1375. Smith of the Bizen Yoshii School.
Yoshinori (吉則) — Mainline · 1384-1387. Smith of the Bizen Yoshii School.
Yoshinori (吉則) — Mainline · 1429-1441. Smith of the Bizen Yoshii School.
Kagekuni (景國) — Mainline · 1394-1428. Smith of the Bizen Yoshii School.
Kagenori (景則) — Mainline · 1492-1501. Smith of the Bizen Yoshii School.
Kagetaka (景高) — Mainline · 1293-1299. Smith of the Bizen Yoshii School.
Kagetoshi (景利) — Mainline · 1444-1449. Smith of the Bizen Yoshii School.
Kageyasu (景安) — Mainline · 1329-1331. Smith of the Bizen Yoshii School.
Kageyasu (景安) — Mainline · 1389-1390. Smith of the Bizen Yoshii School.
Kageyori (景依) — Mainline · 1326-1329. Smith of the Bizen Yoshii School.
Mitsunori (光則) — Mainline · 1356-1361. Smith of the Bizen Yoshii School.
Naganori (長則) — Mainline · 1532-1555. Smith of the Bizen Yoshii School.
Naganori (永則) — Mainline · 1688-1704. Smith of the Bizen Yoshii School.
Naritsuna (成綱) — Mainline · 1381-1384. Smith of the Bizen Yoshii School.
Norinao (則直) — Mainline · 1334-1338. Smith of the Bizen Yoshii School.
Norinori (儀則) — Mainline · 1469-1487. Smith of the Bizen Yoshii School.
Noritsuna (則綱) — Mainline · 1441-1444. Smith of the Bizen Yoshii School.
Noritsune (則恒) — Mainline · 1441-1444. Smith of the Bizen Yoshii School.
Norizane (則眞) — Mainline · 1394-1428. Smith of the Bizen Yoshii School.
Suenori (末則) — Mainline · 1394-1428. Smith of the Bizen Yoshii School.
Tamenobu (爲信) — Mainline · 1801-1804. Smith of the Bizen Yoshii School.
Tamenori (爲則) — Mainline · 1312-1317. Smith of the Bizen Yoshii School.
Tamenori (爲則) — Mainline · 1681-1684. Smith of the Bizen Yoshii School.
Tomonori (友則) — Mainline · 1381-1384. Smith of the Bizen Yoshii School.
Toshimitsu (俊光) — Mainline · 1329-1331. Smith of the Bizen Yoshii School.
Toshimitsu (俊光) — Mainline · 1345-1350. Smith of the Bizen Yoshii School.
Toyo (豊) — Mainline · 987-1596. Smith of the Bizen Yoshii School.
Toyonori (豊則) — Mainline · 1375-1381. Smith of the Bizen Yoshii School.
Toyonori (豊則) — Mainline · 1394-1428. Smith of the Bizen Yoshii School.
Ujinori (氏則) — Mainline · 1381-1384. Smith of the Bizen Yoshii School.
Yasumune (安宗) — Mainline · 1390-1394. Smith of the Bizen Yoshii School.
Yoshinobu (吉信) — Mainline · 1394-1428. Smith of the Bizen Yoshii School.
Yoshinori (吉則) — Mainline · 1394-1428. Smith of the Bizen Yoshii School.
Yoshinori (吉則) — Mainline · 1449-1452. Smith of the Bizen Yoshii School.