The Emperor became Daijo Tenno (the retired Emperor) after he abdicated from the throne; he asked his close aides, FUJIWARA no Yoshino, to care for the prince's future affairs, but after he died his worries were realized as the Showa Incident.
退位して太上天皇になった天皇は忠実な側近藤原吉野に親王の後事を託して崩御するが、その不安は承和の変として現実のものとなった。