In 1459, Yoshitoshi SHIBA, the head of the Shiba clan, was removed from his position as head of the clan by Yoshimasa ASHIKAGA, the 8th shogun of the Ashikaga shogunate who was angry about the conflict between Yoshitoshi and Jochi KAI, the shugodai (deputy military governor) and the vassal of the SHIBA clan.
長禄3年（1459年）、斯波氏の当主・斯波義敏は家臣の守護代甲斐常治と対立し、8代将軍足利義政の怒りに触れて罷免される。