Yoshinari Hatakeyama

A military commander in the late Muromachi period. The eldest son of Hatakeyama Mochikuni, the shogunate regent of the Muromachi shogunate. His first name was Yoshinatsu. Mochikuni had no legitimate biological children, so he tried to make his younger brother Mochitomi the successor to the family headship, and also adopted Mochitomi's son Masanaga. However, in 1450 (Houtoku 2), he handed over the family headship to Yoshinari, who was born to a concubine, and the Hatakeyama clan split into the Mochikuni/Yoshinari faction and the powerful vassals who supported Masanaga, and they repeatedly fought, involving local lords, mainly in their domain of Kawachi. Shogun Ashikaga Yoshimasa, Hosokawa Katsumoto, and Yamana Mochitoyo (Sozen) supported Masanaga, so in 64 (Kansho 5), Masanaga became Kanrei and inherited the family headship. However, Yoshinari soon gained the support of Sozen, who was in conflict with Katsumoto, and succeeded in dismissing Masanaga in 67 (Onin 1). However, war broke out between Masanaga, who was supported by Katsumoto, and this developed into the Onin War. The conflict between the two Hatakeyama factions continued even after the war, and Yoshinari fought battles that involved local lords in Kawachi Yamato and Minamiyamashiro. He died on January 12, 12th year of Entoku.

[Shigehiro Kawashima]

"Japanese History 13: Muromachi Shogunate" by Sasaki Ginya (1975, Shogakukan)" ▽ "Onin War" by Suzuki Ryoichi (Iwanami Shinsho)

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

室町後期の武将。室町幕府管領(かんれい)畠山持国(もちくに)の長男。初名義夏。持国には嫡出の実子がなかったので弟持富(もちとみ)を家督後継者にしようとし、またその子政長(まさなが)を養子に迎えた。ところが妾との間に生まれた義就に1450年（宝徳2）家督を譲ったため畠山氏は、持国・義就派と、政長を支持する有力家臣派とに分裂、領国河内(かわち)を中心にして国人(こくじん)領主を巻き込んで戦いを繰り返した。将軍足利義政(あしかがよしまさ)、細川勝元(ほそかわかつもと)、山名持豊(やまなもちとよ)（宗全(そうぜん)）が政長を支持したため、政長は64年（寛正5）管領に就任し家督を継いだ。しかし、まもなく義就は勝元と対立した宗全の支持を取り付け、67年（応仁1）政長の解任に成功を収めると、勝元の支持を受ける政長との間に戦端が開かれ、応仁(おうにん)の乱へと発展していった。乱後も畠山両派の争いは続き、義就は河内大和(やまと)、南山城(やましろ)の国人を巻き込んで転戦している。延徳(えんとく)2年1月12日死去。

［川島茂裕］

『佐々木銀弥著『日本の歴史13　室町幕府』（1975・小学館）』▽『鈴木良一著『応仁の乱』（岩波新書）』

出典　小学館　日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について　情報 | 凡例