Go clan called themselves descendant of OE no Hiromoto; at first their ancestors lived in Aterazawa, Dewa Province (now Oe-cho, Yamagata Prefecture), and later on in late Muromachi period moved to Hoken County, Mino Province (present-day Gifu City), introducing themselves as Go clan.
郷氏　大江広元の後裔を称し、先祖がまず出羽国左沢（あてらざわ、現山形県大江町）に居住し、後に室町末期に美濃国方縣郡（現岐阜市）に遷住し、江（ごう）氏を名乗ったという。