Ashikaga Mitsutada

A military commander in the mid-Muromachi period. Also read as "Mitsunao." Sasagawa Gosho. Son of the second Kamakura kubo Ujimitsu and younger brother of the third Mitsukane. In 1399 (Oei 6), he went down to Sasagawa, Asaka County, Mutsu Province (Sasagawa, Asaka Town, Koriyama City, Fukushima Prefecture), and together with Inamura Gosho Mitsusada, he played a part in the Kamakura government's control of southern Oshu. Ten documents issued to the Yuki Shirakawa clan and others around 1429 (Eikyo 1) remain, and from these, it can be seen that he exercised authority equivalent to that of the Oshu Kanrei. In 1416 (Oei 23) during the Uesugi Zenshu Rebellion, he sided with Uesugi Ujinori (Zenshu) and Ashikaga Mitsutaka, and since then he acted independently, opposing the Mochi clan, opposing Mitsusada, and being pro-Shogunate. In June 1440 (Eikyo 12), during the Battle of Yuki by Ishikawa clan and others, he was attacked by local lords from southern Oshu who sided with Yuki, and died at Shinokawa.

[Mitsuo Hirata]

"Fukushima Prefecture History Volume 1" (1969, Fukushima Prefecture) ▽ "Yaninuma Gisuke, Oshu Shinokawa Palace - Historical Materials and Research" (1975, Koriyama Regional History Research Association)

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

室町中期の武将。「みつなお」とも読む。篠川御所(ささがわごしょ)。鎌倉公方(くぼう)第2代氏満(うじみつ)の子、同3代満兼(みつかね)の弟。1399年（応永6）陸奥(むつ)国安積(あさか)郡篠川（福島県郡山(こおりやま)市安積町笹川）に下向、稲村御所満貞(みつさだ)とともに鎌倉府の南奥州支配の一翼を担う。1429年（永享1）前後に結城(ゆうき)白河氏などにあてた発給文書が10点残存し、それらからみると、奥州管領(かんれい)に準じた権限を行使している。1416年（応永23）の上杉禅秀(ぜんしゅう)の乱に上杉氏憲(うじのり)（禅秀）、足利満隆(みつたか)に味方し、以来、反持氏(もちうじ)、反満貞、親幕府という独自の動きをした。1440年（永享12）6月、石川氏ら結城合戦に際し、結城方についた南奥州の国人達に攻められ篠川にて没した。

［平田満男］

『『福島県史　第1巻』（1969・福島県）』▽『柳沼儀介著『奥州篠川御所――史料と研究』（1975・郡山地方史研究会）』

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