Although the Daikakuji line already had its future heir apparent for the throne because Gonijo's first son, Imperial Prince Kuniyoshi was born in 1300, Kameyama was partial to his son Imperial Prince Tsuneaki who was born in 1303, and had made Gouda and Fushimi promise to place Tsuneaki instead of Kuniyoshi on the throne, which led to further seeds of Imperial lineage division.
大覚寺統では、すでに後二条には正安2年（1300年）に第1皇子邦良親王が生まれて将来の皇位継承が予定されていたにもかかわらず、亀山が乾元(日本)2年（1303年）に生まれた自分の皇子恒明親王を偏愛するあまり、邦良に代えて恒明を皇位につけることを後宇多と伏見に約束させて、さらなる皇統分裂の種を蒔いた。