It is believed that he asked his father, Yoshimitsu ASHIKAGA, to provide him with example policies, and to start with, Yoshinori addressed the issue of succession to the throne that arose after the death of Emperor Shoko in 1428.
施策の手本は父足利義満に求めたと思われ、手始めに1428年の称光天皇死後の皇位継承問題を手がける。