Aiming to enhancing his own political power, with support of Kiyomori, Goshirakawa was able to have Prince Norihito (who later became Emperor Takakura) formally installed as Crown Prince (rittaishi).
自らの政治力強化を目指す後白河は、清盛の協力により憲仁親王（後の高倉天皇）の立太子を実現させた。