{
"register": "Meihin Museum Provenance Register",
"number": 1,
"version": 1,
"state": "draft",
"prepared": "2026-10-15",
"issued": null,
"previous": null,
"source_ledger": "juyo_70_16/claims.json (updated 2026-10-15)",
"object": {
"type": [
"Katana",
"刀"
],
"inscription": [
"Gold-inlaid attribution: 行光 (omote); 本阿 with seal-mark (ura)",
"金象嵌銘 表「行光」裏「本阿（花押）」"
],
"attribution": [
"Yukimitsu of Sagami 相州行光",
"相州行光"
],
"period": [
"Late Kamakura period",
"鎌倉時代末期"
],
"measurements": [
"Nagasa 71.5 cm (2 shaku 3 sun 6 bu); sori 1.2 cm",
"長さ71.5cm（二尺三寸六分）、反り1.2cm"
],
"papers": [
"Jūyō Tōken, NBTHK 70th shinsa, designated 6 November 2024",
"重要刀剣（日本美術刀剣保存協会 第七十回、令和六年十一月六日指定）"
]
},
"title": {
"object": [
"Katana, the attribution to Yukimitsu of Sagami inlaid in gold",
"刀 金象嵌銘 行光 本阿（花押）"
],
"line": [
"Late Kamakura period · Nagasa 71.5 cm",
"相州行光 鎌倉時代末期 長さ二尺三寸六分"
],
"distinction_ja": "享保二十年、納采に際して将軍徳川吉宗より仙台伊達家に下賜され、金弐百枚の本阿弥折紙とともに同家の刀剣台帳に伝えられた一刀。"
},
"distinction": [
"Given by the shōgun Tokugawa Yoshimune to the Date house of Sendai on the betrothal of 1735, with its Hon’ami origami of 200 gold mai, and kept in the house’s register of swords.",
"享保二十年（1735年）、納采に際して将軍徳川吉宗より仙台伊達家に下賜され、金弐百枚の本阿弥折紙とともに同家の刀剣台帳に伝えられた一刀。"
],
"claims": [
{
"part": "I",
"src": "Y02",
"status": "confirmed",
"period": [
"1789",
"寛政元年"
],
"en": "The work is the sword recorded as entry 50 of the Kensō hiroku, the register of swords of the Date house of Sendai compiled in 1789: a katana of Yukimitsu of Sagami, with the name and the appraiser’s seal-mark inlaid in gold, a groove on each face, a length of 2 shaku 3 sun 6 bu, and an origami of 1735 at 200 gold mai. Every particular of the entry agrees with the work as the NBTHK described it at its designation in 2024 (§ 9).",
"ja": "本刀は、寛政元年（1789年）に編まれた仙台伊達家の刀剣台帳『劔槍秘録』の第五十番に記される刀である。同項は、相模国行光の御刀、銘と名判の金象嵌、表裏の樋、長さ二尺三寸六分、享保二十年の折紙・金弐百枚を記し、その記載は、令和六年の指定時に日本美術刀剣保存協会が記した本刀の姿（第九項）にすべて合致する。",
"notes": [
1,
2,
3
],
"excl_en": "Distinguished from: a second katana bearing the same gold inscription, 行光 and 本阿 with the seal-mark, which measures 74.5 cm and was designated Jūyō Tōken in 1964;4 six other Yukimitsu recorded in Date hands, all short blades or of a different valuation; a signed Bizen Yukimitsu of the same length with an origami of 20 mai;5 an unsigned Yukimitsu of the same length with an origami valued in kan.6",
"excl_ja": "区別される刀：同じ金象嵌銘（表「行光」、裏「本阿（花押）」）をもつ別の刀。長さ二尺四寸六分（74.5cm）、昭和三十九年（1964年）重要刀剣。4伊達家に伝わった他の行光六口（いずれも短刀・小品、または評価額を異にする）。同寸で二十枚の折紙をもつ在銘の備前行光。5同寸で貫高の折紙をもつ無銘の行光。6",
"holds": {
"house": "date",
"year": 1789,
"head": "Date Shigemura"
}
},
{
"part": "II",
"src": "Y04",
"status": "confirmed",
"period": [
"1735",
"享保二十年"
],
"en": "Hon’ami Kōyū’s origami for the sword is dated the third day of the fourth month of Kyōhō 20 (1735) and values it at 200 gold mai, some ten weeks before the gift.",
"ja": "本阿弥光勇による本刀の折紙は享保二十年（1735年）卯月三日付、金弐百枚である。下賜の約十週間前にあたる。",
"notes": [
1,
2
]
},
{
"part": "II",
"src": "Y05",
"status": "probable",
"period": [
"1735",
"享保二十年"
],
"en": "The attribution to Yukimitsu, the gold inscription and the valuation appear to have been made together in the spring of 1735 in preparation for the gift: an unsigned, much-shortened katana of the shogunal sword store, prepared for presentation. The inference is drawn from the date of the origami relative to the ceremony (§ 2) and from the practice of the store in the period.",
"ja": "行光の極め、金象嵌、評価額は、享保二十年（1735年）春、下賜に備えて併せて付されたものと考えられる。すなわち、幕府御腰物のうち無銘・大磨上の一刀が、贈答のために整えられた。この推定は、折紙の日付と儀式の日との前後（第二項）、および当時の御腰物の扱いから導かれる。",
"notes": [
7,
8
]
},
{
"part": "II",
"src": "Y01 (+Y03)",
"status": "confirmed",
"period": [
"1735",
"享保二十年"
],
"en": "On the nineteenth day of the sixth month of Kyōhō 20 (1735), the shōgun Tokugawa Yoshimune gave a katana by Yukimitsu of Sagami to the Date house of Sendai, on the betrothal of Princess Tone to Date Munemura. The gift is recorded in at least six independent lines of transmission: the Tokugawa jikki, the Kansei chōshū shokafu, the Kinsei tōken nenpyō, the Sendai shishi, the Dai Nihon komonjo and the Date house’s own Kensō hiroku. The sources differ on who received it at the ceremony: the Tokugawa jikki names Date Yoshimura, lord of Sendai; the Kansei chōshū shokafu names the bridegroom, Munemura.",
"ja": "享保二十年六月十九日（1735年）、将軍徳川吉宗は、利根姫と伊達宗村の納采に際し、相模国行光の刀を仙台伊達家に下賜した。この下賜は、少なくとも六系統の独立した文献に伝えられる。『徳川実紀』『寛政重修諸家譜』『近世刀剣年表』『仙台市史』『大日本古文書』、そして伊達家自身の『劔槍秘録』である。儀式における拝領者については典拠により異なり、『徳川実紀』は仙台藩主伊達吉村、『寛政重修諸家譜』は婿の宗村とする。",
"notes": [
9,
10,
1,
11,
12,
13
],
"holds": {
"house": "date",
"year": 1735,
"head": "Date Yoshimura"
}
},
{
"part": "II",
"src": "Y08",
"status": "confirmed",
"period": [
"1757",
"宝暦七年"
],
"en": "The mitokoromono by Gotō Tsūjō, bearing the hollyhock crest, received a separate origami dated the seventh day of the twelfth month of Hōreki 7 (1757), at 3 mai. The sword and its fittings were still in the Date house twenty-two years after the gift.",
"ja": "後藤通乗作の葵紋三所物は、宝暦七年十二月七日（1757年）付、代金三枚の折紙を別に受けた。下賜から二十二年を経ても、一式は伊達家にあった。",
"notes": [
1,
2
],
"holds": {
"house": "date",
"year": 1757,
"head": "Date Shigemura"
}
},
{
"part": "II",
"src": "Y09",
"status": "probable",
"period": [
"1789–1947",
"寛政元年〜昭和二十二年"
],
"en": "The sword remained in the Date collection from the compilation of the Kensō hiroku in 1789, through the removal of the collection to Tokyo in the Meiji period (370 swords, 1883 to 1893) and the time of Count Date Okimune, when designations of 1933 and 1934 show the collection intact, until Okimune’s death in July 1947. The conclusion is drawn from the documented continuity of the collection through those years.",
"ja": "本刀は、寛政元年（1789年）の『劔槍秘録』編纂から、明治期の東京への移送（三百七十口、明治十六年〜二十六年〈1883〜93年〉）、蔵刀の保たれていたことが昭和八・九年の認定に示される伊達興宗伯爵の時代を経て、昭和二十二年（1947年）七月の興宗の死まで、伊達家に伝わったと考えられる。この結論は、この間の蔵刀の伝存が記録により連続することから導かれる。",
"notes": [
1,
14,
15
]
},
{
"part": "II",
"src": "Y10",
"status": "probable",
"period": [
"1947–1955",
"昭和二十二年〜三十年"
],
"en": "The sword left the Date estate in the post-war dispersal of the collection to the trade, within a documented window: an agent of the estate was engaged from October 1951, and a systematic sale began about January 1955.",
"ja": "本刀は、戦後、伊達家の蔵刀が刀剣市場へ整理される過程で同家を離れた。その時期は記録により限られる。家財整理の代理人の関与は昭和二十六年（1951年）十月に始まり、組織的な売却は昭和三十年（1955年）一月頃に始まった。",
"notes": [
16,
17,
18
]
},
{
"part": "II",
"src": "Y18",
"status": "probable",
"period": [
"Undated",
"年紀不詳"
],
"en": "A sayagaki by Hon’ami Nisshū, now lost, recorded the sword as an heirloom of the Date of Ōshū (奥州伊達家伝来). It is reported in a published description of the sword.",
"ja": "本阿弥日洲の鞘書（現存せず）は、本刀を「奥州伊達家伝来」と記していた。本刀の公刊の解説に報告される。",
"notes": [
19
]
},
{
"part": "II",
"src": "Y16",
"status": "confirmed",
"period": [
"2024",
"令和六年"
],
"en": "On 6 November 2024 the NBTHK designated the sword Jūyō Tōken at its 70th shinsa, as item 16. Its description of the work concludes that Hon’ami Kōyū’s attribution to Sōshū Yukimitsu may be accepted (本阿弥光勇の極めは首肯されよう).",
"ja": "令和六年（2024年）十一月六日、日本美術刀剣保存協会は第七十回重要刀剣等審査において本刀を重要刀剣に指定した（古刀一六）。その説明は「本阿弥光勇の極めは首肯されよう」と結ぶ。",
"notes": [
3
]
},
{
"part": "II",
"src": "Y17",
"status": "confirmed",
"period": [
"2025",
"令和七年"
],
"en": "In November 2025 Tanobe Michihiro (Tanzan) wrote a sayagaki on the shirasaya. It records Kōyū’s gold attribution and the gift of 1735, following the Tokugawa jikki in naming Yoshimura as the recipient (§ 4), describes the work, cites the 70th Jūyō designation, and concludes that the old attribution is appropriate: 古極ハメハ妥當也.",
"ja": "令和七年（2025年）十一月（暢月）、田野辺道宏（探山）は白鞘に鞘書を記した。光勇の金象嵌の極めと享保二十年の下賜を記し（拝領者は『徳川実紀』に従って吉村とする。第四項参照）、作域を述べ、第七十回重要刀剣指定に触れて、「古極ハメハ妥當也」と結ぶ。",
"notes": [
20
]
}
],
"withdrawn": [
{
"src": "Y15",
"date": [
"11 July 2026",
"令和八年七月十一日"
],
"en": "忠山 is the posthumous name of Date Yoshimura, so that the register’s 忠山様御拝領 records receipt by the father.",
"ja": "忠山は伊達吉村の法号であり、台帳の「忠山様御拝領」は父の拝領を記したものである。",
"basis_en": "The reading was given without a citation.",
"basis_ja": "典拠を示さずに述べられた読みであった。",
"reason_en": "Fukunaga’s glosses distinguish 獅山様, Yoshimura, the fifth lord, from 忠山様, Munemura, the sixth, within one passage.2 忠山 is Munemura. On the recipient at the ceremony, see § 4.",
"reason_ja": "福永の注記は、同じ一節のなかで獅山様（五代吉村）と忠山様（六代宗村）を区別している。2忠山は宗村である。儀式における拝領者については第四項を参照。"
}
],
"sources": [
{
"n": 1,
"key": "kenso",
"grade": "E1",
"physical": true,
"en": "Kensō hiroku 劔槍秘録 (compiled 1789), section 未収の部, entry 50. Manuscript copy accompanying the work, read from photographs of the pages",
"ja": "『劔槍秘録』（寛政元年編）未収の部 第五十番。本刀に附属する写本、各頁の写真により確認"
},
{
"n": 2,
"key": "fukunaga",
"grade": "E2",
"pid": "14030426",
"frame": 113,
"en": "Fukunaga Suiken 福永酔剣, Kōshitsu, shōgun-ke, daimyō-ke tōken mokuroku 皇室・将軍家・大名家刀剣目録, the Date house, entry 44",
"ja": "福永酔剣『皇室・将軍家・大名家刀剣目録』伊達家 第四十四項"
},
{
"n": 3,
"key": "zufu70",
"grade": "E1",
"en": "NBTHK, Jūyō Tōken, 70th shinsa, designated 6 November 2024: the designation record and description of the work (by Ōhira Takeko), item 16 (古刀一六)",
"ja": "日本美術刀剣保存協会、第七十回重要刀剣等審査、令和六年十一月六日指定：指定記録および説明（大平岳子）、古刀一六"
},
{
"n": 4,
"key": "zufu12",
"grade": "E1",
"pid": "8799596",
"frame": 61,
"en": "Jūyō tōken-tō zufu 重要刀剣等図譜, 12th session, part 1 (1964)",
"ja": "『重要刀剣等図譜』第十二回 第一輯（昭和三十九年）"
},
{
"n": 5,
"key": "bizen",
"grade": null,
"pid": "14192182",
"frame": 41,
"en": "Fukunaga Suiken 福永酔剣, compendium of daimyō sword registers, second volume: a signed Bizen Yukimitsu of 2 shaku 3 sun 6 bu with an origami of 20 mai",
"ja": "福永酔剣の大名家刀剣目録（第二）、二尺三寸六分・二十枚折紙の在銘備前行光"
},
{
"n": 6,
"key": "kan",
"grade": null,
"pid": "12676698",
"frame": 146,
"en": "Hikōkan seishō: Kurokawa Kobunka Kenkyūjo zōhin zuroku 飛香館清賞・黒川古文化研究所蔵品図録 (1993): an unsigned Yukimitsu of the same length with an origami valued in kan",
"ja": "『飛香館清賞・黒川古文化研究所蔵品図録』（平成五年）、同寸・貫高の折紙をもつ無銘行光"
},
{
"n": 7,
"key": "jikki2",
"grade": "E2",
"pid": "772978",
"frame": 48,
"en": "Tokugawa jikki 徳川実紀, on unsigned swords of the shogunal store held under an attribution to Yukimitsu",
"ja": "『徳川実紀』、行光の極めを受けた幕府御腰物の無銘刀について"
},
{
"n": 8,
"key": "budo",
"grade": "E2",
"pid": "1236793",
"frame": 173,
"en": "Budō zenshū 武道全集, the record of a cutting test of Genroku 6 (1693)",
"ja": "『武道全集』、元禄六年（1693年）の試し斬りの記録"
},
{
"n": 9,
"key": "jikki",
"grade": "E1",
"pid": "12212059",
"frame": 350,
"en": "Tokugawa jikki 徳川実紀, Kokushi taikei edition",
"ja": "『徳川実紀』（国史大系本）"
},
{
"n": 10,
"key": "shokafu",
"grade": "E2",
"pid": "2985864",
"frame": 177,
"en": "Kansei chōshū shokafu 寛政重修諸家譜, the entry for Date Munemura",
"ja": "『寛政重修諸家譜』伊達宗村の条"
},
{
"n": 11,
"key": "nenpyo",
"grade": "E2",
"pid": "1232672",
"frame": 136,
"en": "Kinsei tōken nenpyō 近世刀剣年表 (1935)",
"ja": "『近世刀剣年表』（昭和十年）"
},
{
"n": 12,
"key": "sendai",
"grade": "E2",
"pid": "2992604",
"frame": 222,
"en": "Sendai shishi 仙台市史, vol. 8, Shiryō-hen",
"ja": "『仙台市史』第八巻 資料編"
},
{
"n": 13,
"key": "komonjo",
"grade": "E2",
"pid": "1908916",
"frame": 350,
"en": "Dai Nihon komonjo 大日本古文書, Iewake 3, Date family documents, vol. 10",
"ja": "『大日本古文書 家わけ第三 伊達家文書之十』"
},
{
"n": 14,
"key": "datemasamune",
"grade": "E2",
"pid": "13449337",
"frame": 113,
"en": "Date Masamune to katana: Sendai tōkō shiwa 伊達政宗と刀 仙台刀工史話 (1993)",
"ja": "『伊達政宗と刀 仙台刀工史話』（平成五年）"
},
{
"n": 15,
"key": "jubi",
"grade": "E2",
"pid": "12743662",
"frame": 69,
"en": "The lists of works certified Jūyō Bijutsuhin in 1933 and 1934, the swords of Count Date Okimune",
"ja": "昭和八年・九年の重要美術品認定の目録、伊達興宗伯爵の蔵刀"
},
{
"n": 16,
"key": "court",
"grade": "E2",
"pid": "1349094",
"frame": 394,
"en": "Saikō saibansho saibanshū, keiji 最高裁判所裁判集 刑事, no. 136 (1960)",
"ja": "『最高裁判所裁判集 刑事』第百三十六号（昭和三十五年）"
},
{
"n": 17,
"key": "fusetsu",
"grade": "E2",
"pid": "14021527",
"frame": 106,
"en": "Fūsetsu ni ikita niman kyūsen nihyaku yo nichi 風雪に生きた二万九千二百余日 (1995)",
"ja": "『風雪に生きた二万九千二百余日』（平成七年）"
},
{
"n": 18,
"key": "tr469",
"grade": "E2",
"pid": "7901163",
"frame": 33,
"en": "Tōken to rekishi 刀剣と歴史, no. 469, Fukunaga Suiken on the dispersal of the Date swords",
"ja": "『刀剣と歴史』第四六九号、福永酔剣による伊達家蔵刀の散逸の記述"
},
{
"n": 19,
"key": "nisshu",
"grade": "E2",
"en": "A published description of the sword (online, after 1980), reporting the Nisshū sayagaki. Cited only as the source of that report",
"ja": "本刀の公刊の解説（オンライン、1981年以降）。日洲の鞘書の報告の典拠としてのみ引く"
},
{
"n": 20,
"key": "tanobe",
"grade": "E1",
"physical": true,
"en": "Sayagaki by Tanobe Michihiro (Tanzan) on the shirasaya, dated 乙巳暢月, November 2025. Read in full from photographs of the scabbard",
"ja": "田野辺道宏（探山）の鞘書、乙巳暢月（令和七年）。鞘の写真により全文を確認"
}
],
"sequence": [
{
"date": [
"1735, 4th month",
"享保二十年卯月"
],
"event": [
"Origami by Hon’ami Kōyū, 200 gold mai",
"本阿弥光勇の折紙、金弐百枚"
],
"finding": 2
},
{
"date": [
"1735, 6th month",
"享保二十年六月"
],
"event": [
"Given by the shōgun Yoshimune to the Date house of Sendai",
"将軍吉宗より仙台伊達家に下賜"
],
"finding": 4
},
{
"date": [
"1757",
"宝暦七年"
],
"event": [
"Origami for the Gotō Tsūjō fittings; in the Date house",
"後藤通乗の三所物に折紙。伊達家に在り"
],
"finding": 5
},
{
"date": [
"1789",
"寛政元年"
],
"event": [
"Kensō hiroku, entry 50",
"『劔槍秘録』第五十番"
],
"finding": 1
},
{
"date": [
"1789–1947",
"寛政元年〜昭和二十二年"
],
"event": [
"In the Date collection, to the death of Count Okimune",
"伊達家に伝わる（興宗伯爵の死まで）"
],
"finding": 6
},
{
"date": [
"1947–1955",
"昭和二十二〜三十年"
],
"event": [
"Leaves the Date estate in the post-war dispersal",
"戦後の蔵刀整理により伊達家を離れる"
],
"finding": 7
},
{
"date": [
"Undated",
"年紀不詳"
],
"event": [
"Sayagaki by Hon’ami Nisshū, now lost: a Date heirloom",
"本阿弥日洲の鞘書（現存せず）。伊達家伝来と記す"
],
"finding": 8
},
{
"date": [
"2024",
"令和六年"
],
"event": [
"Designated Jūyō Tōken, NBTHK 70th shinsa, item 16",
"日本美術刀剣保存協会 第七十回重要刀剣指定（古刀一六）"
],
"finding": 9
},
{
"date": [
"2025",
"令和七年"
],
"event": [
"Sayagaki by Tanobe Michihiro (Tanzan)",
"田野辺道宏（探山）の鞘書"
],
"finding": 10
}
],
"museum": [
{
"when": [
"Late Kamakura period",
"鎌倉時代末期"
],
"en": "Made in Sagami at the end of the Kamakura period; attributed to Yukimitsu.",
"ja": "相模にて鍛えられる。行光と極められる。",
"finding": null
},
{
"when": [
"1735",
"1735年"
],
"en": "Origami by Hon’ami Kōyū, at 200 gold mai.",
"ja": "本阿弥光勇の折紙、金弐百枚。",
"finding": 2
},
{
"when": [
"1735",
"1735年"
],
"en": "Given by the shōgun Tokugawa Yoshimune to the Date house of Sendai. The sources differ on whether Yoshimura or his son Munemura received it.",
"ja": "将軍徳川吉宗より仙台伊達家に下賜。拝領者を吉村とするか宗村とするかは、典拠により異なる。",
"finding": 4
},
{
"when": [
"1757",
"1757年"
],
"en": "The fittings by Gotō Tsūjō receive their own origami; the sword is in the Date house.",
"ja": "後藤通乗の三所物に折紙。本刀は伊達家に在る。",
"finding": 5
},
{
"when": [
"1789",
"1789年"
],
"en": "Entered in the Date register of swords, the Kensō Hiroku, as entry 50.",
"ja": "伊達家の刀剣台帳『劔槍秘録』に第五十番として載る。",
"finding": 1
},
{
"when": [
"To 1947",
"1947年まで"
],
"en": "In the Date collection, it appears, until the death of Count Okimune.",
"ja": "興宗伯爵の没年まで、伊達家に伝わったと考えられる。",
"finding": 6
},
{
"when": [
"c. 1947–1955",
"1947〜55年頃"
],
"en": "Leaves the Date family, it appears, in the post-war dispersal of the collection.",
"ja": "戦後の蔵刀整理により、伊達家を離れたと考えられる。",
"finding": 7
},
{
"when": [
"Undated",
"年紀不詳"
],
"en": "A sayagaki by Hon’ami Nisshū, now lost, is reported to have recorded the sword as a Date heirloom.",
"ja": "本阿弥日洲の鞘書（現存せず）は、伊達家伝来と記していたと伝えられる。",
"finding": 8
},
{
"when": [
"2024",
"2024年"
],
"en": "Designated Jūyō Tōken, NBTHK 70th shinsa (item 16).",
"ja": "第七十回重要刀剣等審査にて重要刀剣に指定（古刀一六）。",
"finding": 9
},
{
"when": [
"2025",
"2025年"
],
"en": "Sayagaki by Tanobe Michihiro (Tanzan), November.",
"ja": "田野辺道宏（探山）の鞘書（十一月）。",
"finding": 10
}
],
"history": [
{
"date": [
"11 July 2026",
"令和八年七月十一日"
],
"en": "The count of witnesses to the gift of 1735 corrected. Printed editions of one text are not independent witnesses; the earlier count of fifteen became six independent lines of transmission (§ 4).",
"ja": "1735年の下賜の証拠の数え方を訂正。同一文献の刊本は独立の証拠とは数えない。先の十五件を、六系統の独立した文献伝承に改めた（第四項）。"
},
{
"date": [
"11 July 2026",
"令和八年七月十一日"
],
"en": "A reading of the recipient withdrawn (W 1).",
"ja": "拝領者に関する読みを撤回（撤一）。"
}
],
"conclusion": [
{
"house": "date",
"kind": "heirloom",
"en": "Documented Heirloom of the Date House of Sendai",
"ja": "仙台伊達家伝来",
"basis": {
"years": [
1735,
1757,
1789
],
"heads": [
"Date Shigemura",
"Date Yoshimura"
]
},
"crest": "date-take-ni-suzume.svg"
}
]
}