When his younger brother, Emperor Anko, was murdered by his own stepchild, Prince Mayowa, Sakai no kurohiko no miko was almost murdered in conspiracy of his younger brother Ohatsuseno wakatakeruno miko (the later Emperor Yuryaku) who was trying to succeed the Imperial Throne.
弟・安康天皇をその連れ子・眉輪王が殺すと、境黒彦皇子は弟・大泊瀬稚武皇子（後の雄略天皇）が皇位を継がんとする企みで殺されそうになった。