The URAGAMI clan was a descendant of KI no Haseo (there is also a theory indicating that the clan was a descendant of KI no Tsurayuki) and the family name was derived from the area of Uragamigo, Ibo-gun County (Uragamisho), Harima province.
浦上氏は紀長谷雄の子孫（紀貫之の子孫との説もある）で、播磨国揖保郡浦上郷（浦上庄）が苗字の地である。