He married an adopted daughter of FUJIWARA no Suenori, Atsuda Daiguji (the highest priest serving at the Atsuta-jinja Shrine in Owari Province) and allied with MINAMOTO no Yoshitomo who became a brother-in-law.
また、熱田大宮司藤原季範の養女（実孫）を娶って、相聟となった源義朝と同盟関係を結んでいる。