Utsunomiya Yasumune

Utsunomiya Yasumune was a general of the later Kamakura period, a younger son of Utsunomiya Kagetsuna and brother of the clan head Sadatsuna. He first bore the name Morimune, the character given him by Adachi Yasumori, and is thought to have renamed himself after Yasumori's fall in the 1285 Shimotsuki incident.

When Sadatsuna led the shogunal army against the second Mongol invasion in 1281, Yasumune followed him to Kyūshū and held Ōki Castle in Setaka, Chikugo Province.

His son Tokitsuna inherited Mumo manor in Hitachi Province, while Sadayasu became a land steward in Iyo and laid the foundations of the Iyo and later Chikugo Utsunomiya houses.