When Yoshimitsu ASHIKAGA suddenly died, the fourth Shogun, Yoshimochi ASHIKAGA, was supported by Yoshimasa SHIBA, and refused to bestow the posthumous name of Emperor Daijo on Yoshimitsu; he also repudiated Yoshimitsu's policies, for example by temporarily halting the tally trade with Ming China, and sought to return the bakufu government to a more conservative stance.
足利義満が急死すると、4代将軍の足利義持は斯波義将に補佐され、義満に対する太上天皇の追号を辞退し、勘合貿易での明との通商を一時停止するなど義満の政策を否定し幕政を守旧的なものに改める。