In August 1370, when Emperor Gokogon confidentially consulted his advisors in the Northern Court about abdicating in favor of his biological son Imperial Prince Ohito (later Emperor Goenyu), the Retired Emperor Suko insisted that his biological son Imperial Prince Yoshihito was the rightful heir, thus causing a problem over the Imperial Succession.
応安3年（1370年）8月には、北朝において後光厳天皇が実子緒仁親王（後円融天皇）への譲位を内々に諮問すると、崇光上皇が実子栄仁親王が正嫡であると主張したため皇位継承問題が発生した。