It is said that when the Emperor Tenchi fell ill, the Emperor Tenmu advised that Yamatohime no Okimi to ascend the throne, and the Emperor Kobun to become Daijo-daijin (Grand Minister) to serve as sessho (emperor's chief advisor).
天智天皇が病に倒れた際、天武天皇は、倭姫王が即位し、弘文天皇が太政大臣として摂政を執ることを進言したとされる。