相馬氏
was the 10th "daimyō" of Sōma-Nakamura Domain and the 26th hereditary chieftain of the Sōma clan. He was the eldest son of Sōma Yoshitane, and his mother was a daughter of Matsudaira (Sakurai) Tadatsugu of Amagasaki Domain. He was presented in formal audience to "shōgun" Tokugawa Ienari in November 1798 and granted the courtesy title of "Sanuki-no-kami". He became "daimyō" in 1801 on the death of his father, and his courtesy title was changed to "Inaba-no-kami". He retired from public life in November 1813. As his only son had died in childhood, he turned his titles over to his younger brother, Sōma Masutane. He died in 1839.