[1] Yoshinori, who had been a Buddhist monk since the age of ten,[3] became Sei-i Taishōgun on the day of Yoshimochi's death.

[7] During this period, Ming Chinese contacts were increased and Zen Buddhism gained influence, which had broad cultural consequences.

The Chinese emperor reached out to Japan by sending a letter to the shogunate via the kingdom of the Ryūkyū Islands; Yoshinori responded favorably.

[13] According to Mansai Jugo Nikki (満済准后日記), the system of the Tosen-bugyō (唐船奉行) was established in 1434 to mediate overseas trade.

It is significant that the Muromachi shogunate was the first to appoint the executive officers of the samurai class to high positions in its diplomatic bureaucracy.

Mitsusuke confined himself in Yamashiro Castle, and died with 69 members of his family on October 12, after he was attacked by the shogunal army.

[19] The mere fact of that assassination and treason had become a reality served to undercut the previous military ethic of loyalty.