The Ogamo clan having the longest history in Hoki Province, served as zaichokanjin (local official) at kokuga (provincial government office compounds) in the later periods, holding power over the eastern part of Hoki Province until their fall after the Battle of Sekigahara.
小鴨氏は伯耆国の諸家の中では一番歴史の長い一族であり、後の時代には国衙の在庁官人を務め、関ヶ原の戦いで没落するまで伯耆国東部に勢力を持っていた。