He was backed by the 15th Shogun Yoshiaki ASHIKAGA who was first a monk like Kagetomo was, and he was appointed the Shugo of half of Yamashiro Province by Muromachi bakufu (Japanese feudal government headed by a shogun).
同じく最初は僧侶であった第15代将軍・足利義昭により引き立てられ室町幕府より山城国半国の守護に任じられた。