During the era of the second shogun Yoshiakira ASHIKAGA of the Ashikaga bakufu (Japanese feudal government headed by the Ashikaga clan), Kiyouji HOSOKAWA who was a steward (shogunal deputy) assisting a shogun fell from power in the Koan Coup.
2代将軍の足利義詮の頃の足利幕府では、将軍を補佐する執事（管領）であった細川清氏が康安の政変で失脚。