The Prince Mochihito, who was not entitled to hold the name of Imperial prince, named himself the Imperial Prince Saisho in 1180 and raised an army with MINAMOTO no Yorimasa under the slogan of eliminating the Emperor Antoku and the Taira clan government but was killed in a battle (army raised by Prince Mochihito).
以仁王は親王宣下がなされず、ついに治承4年（1180年）、最勝親王を名乗り安徳天皇と平氏政権の排除を唱えて源頼政とともに挙兵するが、敗死した（以仁王の挙兵）。