Sahara Mitsumori

Sahara Mitsumori was a Kamakura-period warrior, the fourth son of Sahara Moritsura. He inherited the headship of the Sahara house, a Miura offshoot which had held Aizu since his grandfather Sahara Yoshitsura received it after the Ōshū campaign of 1189.

When the main Miura house was destroyed in the Hōji Conflict of 1247, Mitsumori and his brothers fought for the Hōjō and survived. A branch of the Sahara in Aizu took the name Ashina, from which the later Ashina lords descended.