This is because Mochiuji also had started to deny the authority of the central bakufu by strengthening the power and basis of his regime against the armed uprisings which were breaking out in various areas in Kanto and Oshu regions during the confusion of the central bakufu.
持氏も幕府中央の混乱に乗じて関東・奥州各地に発生した武装蜂起に対して自己の政権の権限と基盤の強化に乗り出して幕府中央の権威を否定する動きを以前から見せていたからである。