When the Onin War occurred in 1467, he supported Yoshitoshi SHIBA and his son Yoshisuke (Yoshihiro) SHIBA, the shugo of Owari, and sided with the East Squad led by Katsumoto HOSOKAWA against the shugodai of Owari Toshihiro ODA from the head family 'Oda Isenokami family' who supported Yoshiyasu SHIBA, the new shugo of Owari, and sided with the West Squad.
応仁元年（1467年）、応仁の乱が起こると、新たな尾張守護となった斯波義廉を擁立して西軍についた宗家「織田伊勢守家」の尾張守護代織田敏広に対抗し、尾張守護の斯波義敏・義良（義寛）父子を支持し、細川勝元率いる東軍側についた。