Kiyoshige KASAI was an excellent busho (Japanese military commander) with military exploits by joining an army of MINAMOTO no Noriyori, and he was appointed as sobugyo (general magistrate) in Oshu region by flourishing in the battle of Oshu, and consequently the Kasai family became a great clan.
葛西清重は優れた武将で、源範頼に従軍して武功を立て、奥州合戦で活躍して奥州総奉行に任ぜられ、葛西氏は奥州の大族となっている。