In Kanto, even before the occurrence of the Onin Disturbance in Kyoto, three great uprisings, the Kyotoku Disturbance, Chokyo Disturbance, and Eisho Disturbance, occurred successively and Koga-kubo, the Yamanouchi-Uesugi family that was Kanto Kanrei (shogunal deputy for the Kanto region) and its branch family, the Ogigayatsu-Uesugi family, competed for dominance in a three-cornered struggle.
関東では京都で応仁の乱が起きる以前より、享徳の乱・長享の乱・永正の乱の3つの大乱が立て続けに起こっており、古河公方と関東管領山内上杉家・その庶流の扇谷上杉家が3つ巴になって覇権を争った。