However, Shigeuji also raised the Kyotoku Rebellion and escaped to Koga-jo Castle, where he named himself Koga-kubo (古河公方), and as the Uesugi clan split into the Yamanouchi Uesugi and Ogigayatsu Uesugi families, the Kanto region was in a state of turbulence before the Onin War started.
だが成氏も享徳の乱を起こして、古河城に逃れて古河公方を名乗り、更に上杉氏は山内上杉家と扇谷上杉家に分裂したため、応仁の乱が始まるよりも前に関東地方は騒乱状態となる。