The concern that Hakuseki ARAI had, became apparent in real life, the second Kaninnomiya Imperial Prince Sukehito's Prince, Sachinomiya succeeded to Emperor Gomomozono who died without having any children when he was twenty two years old, then he became Emperor Kokaku in 1779.
新井白石の危惧は現実のものとなり、第2代閑院宮典仁親王の王子・祐宮は皇嗣を儲けないまま22歳の若さで崩御した後桃園天皇の跡を継ぎ、安永8年（1779年）光格天皇となった。