He served Takauji ASHIKAGA and Tadayoshi ASHIKAGA, who were brothers, and held important posts (such as the military governorship of Tango Province, judicial appointments, etc.) in the Muromachi bakufu (Japanese feudal government headed by a shogun) while residing in Kyoto.
足利尊氏・足利直義兄弟に仕え、京において室町幕府の要職（丹後国守護・引付頭人等）にあった。