"Hongan" (the legal address of the Ritsuryo system (a system of centralized government based on the ritsuryo code)) of Morogami existed in Kawachi Province, but in 796, it was transferred to Ukyo (in Heian-kyo (the ancient capital of Japan in current Kyoto)).
本貫は河内国にあったが、延暦15年（796年）には右京（平安京）に貫付されている。