Emperor Tenji passed the Imperial throne to his direct line, Prince Otomo (Emperor Kobun), however, Prince Oama, who was against it, caused a large dispute, and killed Emperor Kobun, and became Emperor Tenmu.
天智天皇は直系の大友皇子（弘文天皇）に皇位継承したが、それを不服とする大海人皇子が大規模な叛乱を起こし、弘文天皇を滅ぼして天武天皇となった。