Sōma Morotane

Sōma Morotane was a Kamakura-period warrior of the Sōma clan, a Chiba branch house, and the fifth head of the line later called the Mutsu Sōma. A son of Sōma Tanemura by a later wife, he claimed after Tanemura's death that the will named him heir over his half-brother Sōma Ujiuji.

The headship was confirmed to Ujiuji and Morotane remained without rank or office. In the Shōō era (1288–1293) he ceded his lands to his son Sōma Shigetane; he had died by the Einin era.