Therefore, he extended the power that stemmed from his base in Togoku independently from his father, and he intervened in the conflicts for the control of Soma and Oba mikuriyas, etc., (a dedicated area of Ise shrine) between the families powerful in that locality.
そのため父とは別に東国を根拠地に独自に勢力を伸ばし、相馬御厨・大庭御厨などの支配権をめぐって在地豪族間の争いに介入した。