Busho who sided with the Southern Court, including his family Masahide KUSUNOKI, stole part of the Three Sacred Treasures of the Imperial Family from the Northern Court in the Kinketsu Conspiracy, and fled.
一族の楠木正秀ら南朝方武将は、1443年の禁闕の変で、三種の神器の一部を北朝方から奪い、逃走。