Amano Hachirō [天野八郎]

Register record

Identity & authority

Disambiguation

Jikishinkage-ryū swordsman, 1831–1868; de facto leader (kashira-nami) of the Shōgitai (彰義隊), died in prison after the Battle of Ueno. NOT to be confused with Amano Shōshō (天野将曹), the Odani-ha Kōbusho instructor Sakakibara beat at Nijō Castle.

Reliability

Migrated skeleton. Origins, the Shōgitai rank progression, capture and death follow Yamazaki's Shōgitai Senshi and the encyclopedic entries (cited in body); the imina reading is uncertain (see names).

Attestation

corroboration: external

Names

type	kanji	romaji	reading
yomyo	林太郎	Rintarō	りんたろう
myoji	天野	Amano	あまの
tsusho	八郎	Hachirō
imina	忠告	〔Tadatsugu / Tadatsuge〕	〔…〕
go	斃止	Heishi
kaimyo	顕彰院誼道	〔Kenshōin Gidō〕

Dates

Born

(1831)

Died

明治元年11月8日 (1868-12-21)

Age at death

38 ()

Origin & status

Province

上野

Locality

磐戸村, 甘楽郡 (Iwato village, Kanra district)

Status

Farming family — son of the village headman (名主) of Iwato; explicitly not a shogunal retainer (天野は幕臣ではないもの). Adopted 1865 by the fire-brigade yoriki Hirohama Kinoshin (広浜喜之進); left the adoption 1866.

Lineage & parentage

Father

Ōida Kichigorō Tadahiro (大井田吉五郎忠恕)

Amano Hachirō (天野八郎, 1831–1868; imina 忠告, reading uncertain — Tadatsugu or Tadatsuge; gō Heishi 斃止), the de facto leader of the Shōgitai (彰義隊), sits in the Jikishinkage-ryū (直心影流) roster of notables alongside Sakakibara Kenkichi.

Local tradition holds that he undertook intense mountain training in the hōjō (法定; the foundational Jikishinkage-ryū kata) at Kurotaki-san Fudō-ji (黒滝山不動寺) in Gunma, where austere training retreats continue today. Amano trained at Ryujin Falls, and later Onishi Hidetaka resumed that as a practice.¹

Nakabayashi Shinji’s Nipponica entry on 直心影流 lists him among Jikishinkage-ryū notables. He is not to be confused with Amano Shōshō (天野将曹 / 将監), the Odani-ha fellow-disciple whom Sakakibara bested at Nijō Castle in 1863.

Origins and Status

Amano was born Rintarō (林太郎), second son of Ōida Kichigorō Tadahiro (大井田吉五郎忠恕; reading uncertain), the village headman (名主) of Iwato village, Kanra district, Kōzuke (上野国甘楽郡磐戸村) — not a hereditary retainer. He studied Jikishinkage-ryū (直心影流) from youth in rural Kōzuke. In 1865 he was adopted by an Edo fire-brigade yoriki (与力), Hirohama Kinoshin (広浜喜之進); he left that adoption in 1866, then styled himself a bannerman of the Amano house and took the name Amano Hachirō. The Shōgitai record is explicit that he was not in fact a shogunal retainer (天野は幕臣ではないもの).

The Shōgitai

After the defeat at Toba-Fushimi, Amano joined the bakufu hardliners. When discontented bannermen issued a manifesto and seventeen men of Hitotsubashi connection met at the Myōgaya (茗荷屋) in Zōshigaya on 2/12 (1868), the society that became the Shōgitai took shape, raised to guard the retired Yoshinobu and to police Edo. Shibusawa Seiichirō (渋沢成一郎; cousin of Shibusawa Eiichi) was made head and Amano his deputy (副頭取) — both risen from farmer-headman stock into Hitotsubashi service. The corps swelled past a thousand as masterless samurai and city toughs joined.²

When Yoshinobu withdrew to Mito after the surrender of Edo castle, the moderate Shibusawa wished to abandon Ueno; he clashed with the hardline Amano, left, and raised the Shinbugun (振武軍) at Hannō in Musashi (modern Saitama), leaving Amano in command. Amano’s authority was real, but his title was not the highest: he stood at kashira-nami (頭並), the formal headships resting with Oda’i Kurata (小田井蔵太) and Ikeda Ōsumi-no-kami (池田大隅守). His own Heikyūroku records the progression — deputy (副長) at the founding, tōdori-nami (頭取並) on 3/1, briefly tōdori (頭取) on 4/28, and kashira-nami (頭並) in the intercalary fourth month — but throughout, in Yamazaki’s telling, the real authority in the fighting rested wholly with him (山崎 有信 1910).

The Battle of Ueno and Capture

The end came at the Battle of Ueno on 5/15 (Keiō 4, 1868), when Ōmura Masujirō’s new-government army attacked the Shōgitai entrenched at Kan’eiji and crushed it in a single day. Leading some forty men up to the Sannōdai (山王台), Amano turned and found no one behind him — an episode he recalled in prison:

I came to know the utter softness of the Tokugawa (徳川氏の柔極まるを知る).

He hid afterward at the house of the gunsmith Sumiya Bunjirō (炭屋文次郎) in Honjo Ishihara. On 7/13 the troops of Inada Kurōbei (稲田九郎兵衛) burst in firing; Amano, at breakfast with Ōtsuka Kakunojō (大塚霍之丞), snatched a sword, sprang to the garden, and ran the roof-tiles “nimble as a monkey.” Unable to seize him, the soldiers fired volleys; a ball struck his forehead and he fell, and only then was he taken.

He was held in the kyūmonjo (糺問所; interrogation office) prison for some five months and died there on Meiji 1/11/8 (21 December 1868), aged 38 — of pneumonia by the encyclopedic accounts, simply “of illness” in Yamazaki’s. Unpardoned, he was allowed no funeral and was buried in the mass grave at Kozukappara (小塚原); three years later his comrades secretly set a stone above it under the posthumous name Kenshōin Gidō (顕彰院誼道), and in 1890 he was reburied at Entsū-ji (円通寺) in Minami-Senju, where a monument with a title inscription by Enomoto Takeaki was raised.

The Heikyūroku

During his confinement Amano wrote the Heikyūroku (斃休録) in one volume — a first-person account and loyalist apologia for the Shōgitai. It opens by declaring the “divine land” a country of loyalty, filial piety, and faith, argues that the rebels hold the young emperor and have falsely branded the submissive Yoshinobu an enemy of the court, and laments the nation’s disgrace; it then narrates the society’s formation — the 2/20 gathering of about a hundred at Honganji, the election of Shibusawa as taichō (隊長) and himself as deputy, the adoption of the name, the growth past three hundred, the guarding of Yoshinobu, his own progression through the ranks, and a confrontation with the staff officer Tsuda Sanzaburō — and closes with an organizational roster of the corps and its attached units. The title carries the sense of his gō: 斃 “to fall dead,” 休 “to cease” — Yamazaki glosses it as 斃れて止む, a resolve to fight to the death — so the whole reads roughly “record of one resolved to fall and be done.” It is a partisan voice, valuable precisely as the losing side’s own testimony rather than a neutral record; it survives as a standalone work at NDL (天野 八郎 1868) and is reproduced in full in Yamazaki’s Shōgitai Senshi.

Family and Status

Amano’s end shows how far social status still governed. Because he had come from a farming family and was not of samurai rank (士分にあらず), no permanent stipend could be settled on his survivors — even after Ishikawa Zen’ichirō (石川善一郎), who had let slip Amano’s hiding place and then repented, arranged for the widow Tsuneko (つね子) and the children to be sent to Shizuoka for support under Yoshinobu, with Yamaoka Tetsutarō handling it. The Hamamatsu magistrate Inoue Hachirō (井上八郎), who had bought the samurai-status share (士分株) of one Matsumoto Yūichi (松本勇一), out of pity had Amano’s son succeed that house — which is why the boy appears as Matsumoto Tokutarō (松本徳太郎) rather than Amano. His self-styled bannerman identity did not descend; the line continued only through a purchased status under another name.

References

primary

secondary