Ishikawa Motomitsu

Ishikawa Motomitsu (1058–1099), third son of Minamoto no Arimitsu, was the third head of the Mutsu Ishikawa, rising to Junior Fourth Rank Upper as Daizen no daibu. He briefly changed the characters of his given name before resuming Motomitsu when he succeeded his retired father.

In 1087 he joined Minamoto no Yoshiie's campaign in the Later Three Years' War, fought at the Kanazawa stockade, and received Tagawa district for his merit. In 1095 he went up to Kyoto with his kinsmen to receive court rank and office.