After the Kanno Disturbance, the Kikuchi clan who committed to the Southern Court helped Imperial Prince Kaneyoshi of Seiseifu fortress and Tadafuyu ASHIKAGA, illegitimate child of Shogun Takauji, acted independent at that time, because Seiseifu fortress destroyed the Shoni clan and occupied Dazaifu (local government office in the Kyushu region).
観応の擾乱後に南朝方の菊池氏が懐良親王を奉じた征西府、将軍尊氏の庶子である足利直冬などが分立し、征西府が少弐氏を撃破して大宰府を占領。