The Coup of Kōryaku

Japanese: 康暦の政変 - こうりゃくのせいへん

In 1379 (Tenju 5, Koryaku 1), a coup d'état was committed in which Hosokawa Yoriyuki, the shogunal deputy of the Muromachi shogunate, was exiled. Yoriyuki led the shogunate government for over ten years, aiding the young shogun Ashikaga Yoshimitsu, but many of the feudal lords, including Shiba Yoshimasa, grew increasingly hostile towards Yoriyuki, and in 1378 (Tenju 4, Eiwa 4), an attempt to pursue the Southern Court forces of Kii and Izumi under command of Yoriyuki's adopted son, Yorimoto, failed. Yoshimitsu appointed the anti-Hosokawa brothers Yamana Yoshimichi and Ujikiyo as the guardians of Kii and Izumi to defeat the Southern forces, and then in February 1379 he ordered Shiba Yoshimasa and Toki Yoriyasu, also anti-Hosokawa, to put down the Yamato Rebellion.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

1379年(天授5∥康暦1)室町幕府の管領細川頼之が追放された政変。頼之は若年の将軍足利義満をたすけて10余年間幕政を主導したが，斯波義将以下諸大名の多くは頼之に対する反感を強め，1378年(天授4∥永和4)頼之の養子頼元を主将とする紀伊･和泉南朝軍の追討も失敗した。義満は反細川派の山名義理･氏清兄弟を紀伊･和泉守護として南軍を討たせ，ついで79年2月同じく反細川派の斯波義将，土岐頼康に大和の乱の鎮定を命じた。

出典　株式会社平凡社世界大百科事典第２版について　情報

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