He joined hands with Michiharu KONO in Iyo Province, who also were in opposition to the Hosokawa clan, to take advantage in fighting with the forces of Katsumoto HOSOKAWA, but died on September 3, 1465 in Gogo-shima Island.
細川氏と敵対していた伊予国の河野通春と手を結んで四国における細川勝元の軍に対して優位に戦ったが、1465年9月3日、興居島で死去。