After Emperor Nijo died, Goshirakawa, who lost his political power, worked together with Kiyomori, and it is said that Imperial succession was passed from his nephew to his uncle in an unusual way.
二条天皇の死後に、政治の実権を奪われていた後白河が清盛と手を結んで、甥から叔父へと言う不自然な皇位継承を実現させたと言われている。