The sixth Shogun, Yoshinori ASHIKAGA, aimed to strengthen the authority of the Shogun, so the authority of the Kanrei was reduced, and intervened in disputes over inheritence in the Shiba and Hatakeyama clans, which later contributed to the decline of both families.
6代将軍の足利義教は将軍権力の強化を目指し、管領の権限は縮小され、斯波氏や畠山氏の家督争いに介入し、その後の両家の衰退の遠因となった。