In 1485, he changed his name to Yoshihiro, in the same year, his father Yoshitoshi became a priest so he succeeded him as the shugo (provincial military governor) of Owari Province and Totomi Province.
文明17年（1485年）、名を義寛と改名、同年出家した父義敏の跡を継いで、尾張・遠江守護となる。