On the death of the imperial princess, the Emperor Konin issued the imperial edict promoting Ioi no Joo and Ioe no okimi to the second generation prince and princess (although they were originally the fifth generation princess and prince, they were raised to the second generation (imperial descendant) because they were the emperor's grandchildren from a daughter married into another family).
内親王の薨去に際し、光仁天皇は五百井女王・五百枝王を二世王として優遇する詔を発した（本来は五世王であるが、天皇の外孫のため格別に二世王（皇孫）として処遇することにした）。