Furthermore, since his nine older brothers (excluding Juro-Tametaka) supported the Taira clan, and because Tametaka was punished later, Yoichi took over the Nasu clan's family estate, though he was the eleventh son.
また、十郎為隆を除く九人の兄達が、皆平氏に味方し、為隆ものちに罪を得たため、与一が十一男ながら那須氏の家督を継ぐ事となった。