Although Suminoe no nakatsu miko (or Suminoe naka no oji, the terms miko and oji refer to imperial prince) rebelled in an attempt to seize the Imperial throne, Oe no izahowake no mikoto ordered his younger brother, Mizuhawake (or Mitsuhawake) no miko (the future Emperor Hanzei) to kill the rebel and acceded to the throne in March, 400.
住吉仲皇子が皇位を奪おうとして叛するが、弟の瑞歯別皇子（後の反正天皇）に命じてこれを誅殺させ、履中天皇元年2月（400年3月）に即位。