Establishing the hierarchy as "if the Imperial Palace dies out, the Kira inherits the succession to the family headship, and the Imagawa inherits when Kira dies out" among the people, is due to this background.
「御所が絶えれば吉良が継ぎ、吉良が絶えれば今川が継ぐ」という序列観が人々の間に定着したのも、こうした背景があってのことであった。