According to bogus documents including "History of Danzaemon," the origin of the family was the Hata clan (written as 波多 or 秦) that came from Qin Dynasty (China).
『弾左衛門由緒書』等に依れば、秦から帰化した秦氏（波多氏（秦氏））を祖先に持つとされる。