It is said that Soen and Munetsuna went to Utsunomiya along the Kinugawa River and strengthened the base of the Utsunomiya clan while adding the Haga clan of Maoka City under their umbrella backed by the political base of Hatta.
この場合、宗円と宗綱は八田の政治基盤を背景に、真岡市の芳賀氏を傘下に加えながら鬼怒川沿いに宇都宮に入り、宇都宮氏の基盤を整えたとされる。