In 1443, the Second Southern Court forces made a night attack on the Tsuchimikado Palace and Emperor Gohanazono escaped, then the Kinketsu Disturbance occurred and one of three sacred emblems of the Imperial Family was stolen.
43年には後南朝勢力が土御門内裏に夜襲をかけ、後花園は逃れるが、三種の神器の一部を奪われる禁闕の変が起こる。