His fourth son, Muneyasu UTSUNOMIYA, was adopted by his oldest brother's adopted son, Toyofusa UTSUNOMIYA (younger brother of Fuyutsuna UTSUNOMIYA) and became the head of the Iyo-Utsunomiya clan.
四男の宇都宮宗泰は、長兄の貞宗の養子の宇都宮豊房（宇都宮冬綱の弟）の養子となり伊予宇都宮氏を継ぐ。