From the late Kamakura period and onward, struggle between Jimyointo (imperial lineage from Emperor Gofukakusa to Emperor Gokomatsu) and Daikakujito (imperial lineage starting with Emperor Kameyama) developed into a confrontation of the Northern and Southern Courts and the two emperors were opposed to each other.
鎌倉時代後期以降、持明院統と大覚寺統の争いはやがて南北朝の対立へと進み、二人の天皇が対立するようになった。