His family lineage was the Migita clan, a branch line of the Ouchi clan which was allegedly in the line of the Tatara clan, a clan of the settlers of which ancestor was allegedly King Shomyoo in Baekje.
家系は百済聖明王を祖とするという渡来人氏族　多々良氏の流れを汲むという大内氏の庶流　右田氏。