As his wife was a daughter of Yoshimitsu ASHIKAGA, he won Yoshinori ASHIKAGA's trust and, based on the support by Yoshinori, confronted Hiei, but as Yoshinori was assassinated in the Kakitsu War, his fief was thrown into chaos due to lack of support.
妻が足利義満の娘であることから足利義教の信任を受け、その援助を背景に比叡山と対立したが、嘉吉の乱で義教が暗殺されると後ろ盾を失って領内は混乱した。