Although "Sonpi Bunmyaku" (a text compiled in the fourteenth century that records the lineages of the aristocracy) described that Mitsushige called himself 'Hatano Onzoshi (son of a distinguished family), the details of which is unknown.
『尊卑分脈』には光重が「波多野御曹司」と称したと記載されているが、その詳細については不明である。