Yoshiatsu Miura

Japanese: 三浦義同 - みうら・よしあつ

Year of death: July 11, 1516 (August 9, 1516)
Year of birth: 1451
A military commander in the Muromachi and Sengoku periods. He was the son of Uesugi Takatsugu and the daughter of Omori Ujiyori (Yoseian), and was adopted by Miura Tokitaka, lord of Arai Castle in Sagami (Miura City, Kanagawa Prefecture). Miura no Suke, Mutsu no Kami. After his adoptive father Tokitaka gave birth to his biological son Takanori, there was a rift between them, and he fled Miura and entered Sosei-ji Temple in Ashigarashimo County, where he shaved his head and took the name Dosun. However, in September 1494 (Meiō 3), with the support of his retainers and the support of his mother's Omori clan, he killed Tokitaka and Takanori at Arai Castle, succeeded the Miura clan, and made the castle his residence. Later, in order to prevent Hojo Soun's invasion of Sagami, he renovated Okazaki Castle and moved there, and placed his son Yoshinori in Arai Castle. Soun's full-scale conquest of Sagami began around 1510, and in August 1510, Yoshitomo successfully defended against a fierce attack at Okazaki Castle, but was defeated and retreated to Sumiyoshi Castle. He was also defeated in a counterattack called the Kamakura War in January of the following year, and was forced to retreat to Arai Castle, where he is believed to have remained holed up ever since. In the middle of 1513, when Soun and Ujitsuna attacked Arai Castle, his subordinate, Omori Echigo-no-kami, and others urged Yoshitomo to retreat and make a comeback by relying on Takeda Nobukatsu of Mariya, Kazusa, who was Yoshiyoshi's father-in-law, but he did not listen. On July 11, a decisive battle was fought, and both Yoshitomo and Yoshiyoshi were killed, and the Miura clan was destroyed. He was a military commander who cooperated with Sagami Shugo Uesugi Tomooki and resisted Soun's rule of Sagami to the end.

(Sawaki Eiichi)

Source: Asahi Japanese Historical Biography: Asahi Shimbun Publications Inc. About Asahi Japanese Historical Biography

Japanese:

没年：永正13.7.11(1516.8.9)
生年：宝徳3?(1451)
室町・戦国時代の武将。上杉高救と大森氏頼(寄栖庵)の娘の子で,相模新井城(神奈川県三浦市)城主三浦時高の養子となる。三浦介,陸奥守。養父時高に実子高教が出生したのち不和となり,三浦を逃れて足柄下郡の総世寺に入り,剃髪して道寸と称したと伝える。しかし明応3(1494)年9月,家臣らの支持と母方大森氏の支援により,時高・高教父子を新井城で討ち取り,三浦氏を継いで同城を居城とした。その後,北条早雲の相模侵攻を阻止するため岡崎城を整備してここに移り,新井城には子義意を置いた。早雲の本格的な相模征服の動きは永正7(1510)年ごろから始まり,同9年8月,義同は岡崎城でその猛攻をよく防いだものの敗れ,住吉城に退く。翌年1月の鎌倉合戦と呼ばれる反撃作戦でも敗北し,新井城に退却することを余儀なくされた。その後は同城に立てこもったままであったとみられる。同13年半ば,早雲・氏綱父子に新井城を攻められた際,部将の大森越後守らは義同に,義意の岳父に当たる上総真理谷の武田信勝を頼って退却し再起を図るよう勧めたが,聞き入れなかったという。7月11日になって決戦を挑み,義同,義意共に討死して三浦氏は滅亡した。相模守護上杉朝興に協力し,早雲の相模支配に最後まで抵抗した武将。

(佐脇栄智)

出典　朝日日本歴史人物事典：（株）朝日新聞出版朝日日本歴史人物事典について　情報

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