This title was used also within the imperial O clan and granted to the first Imperial Prince and later to choja (chieftain of the family) selected from the Shoo (princes without proclamation as imperial princes); however it moved to the Jingihaku (administrators of religious affairs) with the drop in the number of Shoo after the Heian Period, inheriting the post over generations except for temporary restoration of the title to the Imperial Princes.
この称号は王氏即ち皇族の間でも存在し、第一親王、後に諸王の中から選出された長者が諸王を代表して是定となったが、平安時代以降、諸王の数が減少すると、神祇伯の家系に移り、一旦、第一親王の手に委ねられるも、再び神祇伯の家系に継承されることとなった。