Sadamitsu raised the army to make a stand but was defeated instead, and in 1335, followed Takauji ASHIKAGA and took the side of the Northern Court.
貞光はこれを迎え撃つために軍を挙げるが敗れ、建武2年（1335年）に足利尊氏に従って北朝(日本)方に属した。