Initially, the Inbe clan and the Onakatomi clan (belonging to the same clan as the Fujiwara clan) occupied the posts of Jingi haku, the head of Jingikan but later, the Shirakawa family from Kazan-Genji (Minamoto clan) assumed the post of Jingi haku from generation to generation.
当初は忌部氏や大中臣氏（藤原氏とは同族）が神祇官の要職を占めていたが、のちに花山源氏白川家が代々神祇官の長である神祇伯に就任した。