In the Sengoku era the school served a second warrior court: the Later Hōjō at Odawara, whose patronage kept the Tsunahiro line forging hitatsura for the uchigatana age until the castle fell to Hideyoshi in 1590.
This katana by Hirotsugu, a smith from Sagami province, dates to the mid-Muromachi period (around Eisho era, 1504-1520). It features a vibrant hitatsura hamon with a mix of togari-gokoro gunome and choji, showing the characteristic Soshu-den forging technique. The sword comes with both koshirae and shirasaya, and is accompanied by NBTHK Tokubetsu Hozon papers for both the blade and the koshirae.
NihontoWatchmei · Soshu · Muromachi · nagasa 64.7cm · sori 2.3cm
Soshu-den · Sagami · around 1469-1487
Fujishiro Jo saku · Tōken Taikan top 37%
1 piece on the market now
Hirotsugu was a swordsmith who resided in Kamakura in Sagami Province, working within the Soshu-den tradition. Sword reference works place the first generation in the Kenmu era; however, among extant works none can be traced back earlier than the mid-Muromachi period, and he is accordingly regarded as a representative Soshu smith of the late Muromachi period. Smiths of particularly high technical ability are known from around the Meio era, and there are also examples bearing Tenbun-era date inscriptions signed "Sunshu Shimada-ju," establishing a connection to Suruga Province. A wakizashi in the Imperial Collection dated Meio 9 (1500) represents the oldest firmly dated example.
Hirotsugu's workmanship is characterized by bold, vigorous construction with wide mihaba and extended kissaki. The kitae is itame-hada mixed with mokume, frequently showing a tendency toward standing grain, with thickly adhering ji-nie and abundant chikei. The hamon is generally yakidaka, mixing gunome with choji, togariba, and yahazu-gata elements within a notare ground. With tobiyaki and muneyaki intermingled, the tempering develops into hitatsura of striking force, accompanied by frequent kinsuji and sunagashi and a bright nioiguchi. The NBTHK observes that at first glance such work "produces a strongly nie-laden, powerful hitatsura that calls to mind the Hasebe school of the Nanbokucho period." Several blades also display faint utsuri, and the boshi is characteristically deep, often finished ichimai with hakikake.
Hirotsugu's finest pieces are consistently praised for the vigor and completeness of their hitatsura, with both ji and ha richly covered in nie. The execution is described as forceful even into the boshi, and the horimono on certain examples -- including kurikara and bonji carvings -- are called "splendid." The NBTHK notes that from these qualities "Hirotsugu's high level of technique is readily discerned," and the best works rank among the finest achievements of late Soshu craftsmanship.
Where Hirotsugu stands among comparable artisans: across all of nihontō, and within tradition, era, and period. The tiers (Foremost · Leading · Major · Notable) weigh official designations from the NBTHK and Japan's Agency for Cultural Affairs, together with historical honors of lasting repute such as the Sansaku and Meibutsu-chō.
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Soshu-den · Sagami
Phase: Sue-Sōshū末相州· 1356–1868
23 pieces on the market now
When the great Kamakura masters had passed and the country slid into the wars of the late Muromachi, a residual Soshu-den held on in Sagami under a new patron. The Later Hojo, ruling from Odawara castle, kept smiths at hand, and it was from this orbit that the leading name of the window emerged: Tsunahiro, transmitted as a retained smith of the Odawara Hojo who took the character tsuna from Hojo Ujitsuna. The first generation's earliest dated works fall in the Tenbun era, and the line runs forward in the conventional reckoning through Tensho, Keicho, Kan'ei, and Manji, the third generation drawn west to Tsugaru by Tamenobu to forge daisho before returning home. Around him stood a wider Sagami population working the same idiom: Hirotsugu of Kamakura, whose strongest hands cluster near the Meio and Tenbun years; Hiromasa and Soso, names carried across several indistinct generations; Masahiro, reaching back toward Joji; and the Odawara group of Yasuharu, Yasukuni, and Fusamune, the last praised above all for his carving. These smiths inherited the manner of the Nanbokucho apex at a remove of generations rather than by direct descent from the mainline of Masamune and Sadamune. The signature of the phase is the open declaration of the full temper. The forging stays itame mixed with mokume, the grain inclined to stand (hadadachi-gokoro), with ji-nie and chikei; over it the smiths ran a notare-and-gunome ground that climbs the upper half into hitatsura, tobiyaki and muneyaki firing across ji and mune, sunagashi and kinsuji threading the ha. This is the hitatsura and o-midare learned from Hiromitsu and Akihiro, but pushed toward display: the Hirotsugu katana of the 61st Juyo runs its temper so high it reaches the shinogi, mixing choji, togariba, and yahazu-gata into a demonstrative yakidaka pattern.
The contrast with the classic apex is precise and the appraisers mark it. Where Masamune raised nie to its deepest refinement over a bright, clear steel, the Sue-Soshu ji tends to shirake, a whitish cast standing in for that clarity, and the nioiguchi inclines to shizumi, a sunken or subdued quality rather than depth. The 238th Jubi record states the point plainly for the first-generation Tsunahiro: the ji and ha carry abundant nie, yet the very shape of the hamon departs from that of Hiromitsu and Akihiro. The temper is broader and busier across the surface, but it lacks the quiet command and the leaping interior activity of the original. To kantei the window is to separate this demonstrative late temper from the classic Soshu-den it imitates: a standing itame with shirake, a wide hitatsura worked with yahazu and crescent tobiyaki, a nioiguchi that sinks rather than deepens, and signatures reading Soshu-ju with full given names rather than the o-suriage mumei of the great forebears. The named hands carry the distinctions, Fusamune through his dense, precise horimono of kurikara and bonji, Tsunahiro through his crescent tobiyaki and high monouchi fire, Hirotsugu through a hitatsura vigorous enough to recall Hasebe. Provenance keeps these blades close to power: several rest in the Imperial collection at the Kunaicho, one bearing the ownership inscription of Akimoto Yoshihide of Kozuke, another the Hachiman Daibosatsu invocation of a Sengoku warrior, the Tsunahiro commission tied by its dated nakago to the Tsugaru house. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Fusamune總宗 | 1504-1521 | 5 |
| Tsunahiro綱廣 | 1532-1555 | 12 |
| Hiromasa廣正 | 1444-1456 | 4 |
| Tsunaie綱家 | 1532-1555 | 3 |
| Kiyohira清平 | 1673-1681 | 4 |
Sōshū in the Muromachi period
In the Sengoku era the school served a second warrior court: the Later Hōjō at Odawara, whose patronage kept the Tsunahiro line forging hitatsura for the uchigatana age until the castle fell to Hideyoshi in 1590.
A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.
The NBTHK (Nihon Bijutsu Tōken Hozon Kyōkai, the Society for the Preservation of Japanese Art Swords) is a public-interest incorporated foundation founded in 1948 and supervised by Japan’s Agency for Cultural Affairs (Bunkachō); it is based at the Japanese Sword Museum in Tokyo. Its expert panels physically examine each submitted work (shinsa) and issue a certificate (kanteishō) ranking it by artistic and historical merit. NBTHK papers are the most widely recognized standard of authentication for Japanese swords and fittings.
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