The Utsunomiya clan was a family which claimed descent of Imperial Prince Iyo, and the Ochi clan, Iyo-Tachibana clan and the Kono clan in Iyo are also known as descents of Imperial Prince Iyo.
宇津宮氏とは伊予親王の子孫と称する一族で、伊予の越智氏や伊予橘氏、河野氏などが知られる。