Sōma clan

The Sōma clan (相馬氏) was a Japanese clan of Mutsu Province which was famous for its actions during the 16th century Sengoku Period.

Claiming descent from Taira Masakado, the family was politically important from the early Nanbokucho Period on, especially as supporters of Ashikaga Takauji. Due to this connection to the man who became the first Ashikaga shogun, they became powerful fairly quickly, and by the Sengoku Period were a focal point of regional authority in southern Mutsu, northern Hamadōri of present day.

The first daimyō of Nakamura was Yoshitane's son, Sōma Toshitane.

In the Boshin War, during the reign of the daimyō Tomotane, the Sōma clan were signatories to the pact that formed the Ōuetsu Reppan Domei.

Genealogy of the Sōma Lords

 * 1) Sōma Morotsune (1143–1205)
 * 2) Sōma Yoshitane (?-?)
 * 3) Sōma Tanetsuna (?-?)
 * 4) Sōma Tanemura (?-1270?)
 * 5) Sōma Morotane (1263?-1294?)
 * 6) Sōma Shigetane (1283?-1337)
 * 7) Sōma Chikatane (?-1358)
 * 8) Sōma Taneyori (1324–1371)
 * 9) Sōma Noritane (?-1395)
 * 10) Sōma Tanehiro (?-?)

Daimyo of the Sōma-Nakamura Domain  (Tokugawa period)
 * 1) Sōma Shigetane (?-?)
 * 2) Sōma Takatane (1424–1492)
 * 3) Sōma Moritane (1476–1521)
 * 4) Sōma Akitane (1508–1549)
 * 5) Sōma Moritane (1529–1601)
 * 6) Sōma Yoshitane (1548–1635)
 * 1) Sōma Toshitane (1581–1625), r. 1602-1625
 * 2) Sōma Yoshitane (1619–1651), r. 1625-1651
 * 3) Sōma Tadatane (1637–1673), r. 1652-1673


 * 1) Sōma Sadatane (1659–1679), r. 1673-1679
 * 2) Sōma Masatane (1661–1728), r. 1679-1701
 * 3) Sōma Nobutane (1677–1711), r. 1701-1709
 * 4) Sōma Takatane (1697–1772), r. 1709-1765
 * 5) Sōma Morotane (1734–1791), r. 1765-1783
 * 6) Sōma Yoshitane (1765–1816), r. 1783-1801
 * 7) Sōma Muratane (1781–1839), r. 1801-1813
 * 8) Sōma Masutane (1796–1845), r. 1813-1835
 * 9) Sōma Mitsutane (1819–1887), r. 1835-1865
 * 10) Sōma Tomotane (1852–1892), r. 1865-1871