The is a line of the Japanese Minamoto clan that is descended from

Emperor Seiwa was the 56th emperor of Japan,Imperial Household Agency (''Kunaichō'') 清和天皇 (56)/ref> according to the traditional order of succession. Seiwa's reign spanned the years from 858 through 876.He was also the predecessor of Takeda ryu. T ...

, which is the most successful and powerful line of the clan. Many of the most famous Minamoto warriors, including Minamoto no Yoshiie,

Minamoto no Yoritomo was the founder and the first shogun of the Kamakura shogunate of Japan, ruling from 1192 until 1199.Nussbaum, Louis-Frédéric. (2005). "Minamoto no Yoriie" in . He was the husband of Hōjō Masako who acted as regent ('' shikken'') after h ...

, the founder of the

Kamakura shogunate The was the feudal military government of Japan during the Kamakura period from 1185 to 1333. Nussbaum, Louis-Frédéric. (2005)"''Kamakura-jidai''"in ''Japan Encyclopedia'', p. 459. The Kamakura shogunate was established by Minamoto no Yo ...

; and

Ashikaga Takauji was the founder and first ''shōgun'' of the Ashikaga shogunate."Ashikaga Takauji" in '' The New Encyclopædia Britannica''. Chicago: Encyclopædia Britannica Inc., 15th edn., 1992, Vol. 1, p. 625. His rule began in 1338, beginning the Muromac ...

, the founder of the

Ashikaga shogunate The , also known as the , was the feudal military government of Japan during the Muromachi period from 1336 to 1573.Nussbaum, Louis-Frédéric. (2005)"''Muromachi-jidai''"in ''Japan Encyclopedia'', p. 669. The Ashikaga shogunate was establis ...

, belonged to this line.

Tokugawa Ieyasu was the founder and first ''shōgun'' of the Tokugawa Shogunate of Japan, which ruled Japan from 1603 until the Meiji Restoration in 1868. He was one of the three "Great Unifiers" of Japan, along with his former lord Oda Nobunaga and fel ...

(1543–1616), founder of the

Tokugawa shogunate The Tokugawa shogunate (, Japanese 徳川幕府 ''Tokugawa bakufu''), also known as the , was the military government of Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in ...

, also claimed descent from this lineage. The family is named after Emperor Seiwa, whose four sons and twelve grandsons founded the Seiwa Genji. Emperor Seiwa was father of Imperial Prince Sadazumi (貞純親王 ''Sadazumi Shinnō'') (873–916), who was in turn the father of Minamoto no Tsunemoto (源経基) (894–961), one of the founders of the Seiwa Genji, from whom most Seiwa Genji members are descended. Many samurai families belong to this line and used "Minamoto" clan name in official records, including the Ashikaga clan,

Hatakeyama clan The was a Japanese samurai clan. Originally a branch of the Taira clan and descended from Taira no Takamochi, they fell victim to political intrigue in 1205, when Hatakeyama Shigeyasu, first, and his father Shigetada later were killed in battl ...

Hosokawa clan The is a Japanese Samurai kin group or clan. Ancestors # Emperor Jimmu # Emperor Suizei # Emperor Annei # Emperor Itoku # Emperor Kōshō # Emperor Kōan # Emperor Kōrei # Emperor Kōgen # Emperor Kaika # Emperor Sujin # Emperor Su ...

, Imagawa clan, Mori,

Nanbu clan The was a Japanese samurai clan who ruled most of northeastern Honshū in the Tōhoku region of Japan for over 700 years, from the Kamakura period through the Meiji Restoration of 1868. The Nanbu claimed descent from the Seiwa Genji of Kai P ...

, Nitta clan, Ogasawara clan,

Ōta clan The was samurai kin group which rose to prominence in Sengoku and Edo period Japan.Papinot, Jacques. (2003)''Nobiliare du Japon'' -- Ōta, pp. 48 Papinot, Jacques Edmond Joseph. (1906). ''Dictionnaire d’histoire et de géographie du Japon.'' ( ...

, Satake clan,

Satomi clan The was a Japanese samurai clan of the Sengoku period (1467–1573) and early Edo period (1603–1868). The clan ruled Awa Province as a ''Sengoku daimyō'' and was a major military power in the Kantō region during the wars of the Nanboku-ch ...

, Shiba clan,

Takeda clan The was a Japanese samurai clan active from the late Heian period until the late 16th century. The clan was historically based in Kai Province in present-day Yamanashi Prefecture. The clan reached its greatest influence under the rule of T ...

, Toki clan,

Tsuchiya clan is a Japanese samurai kin group. Papinot, Jacques Edmond Joseph. (1906). ''Dictionnaire d’histoire et de géographie du Japon''; Papinot, (2003)"Yūki," ''Nobiliare du Japon'', p. 66 retrieved 2013-5-17. History The Tsuchiya clan descend from ...

, among others. The

Shimazu clan The were the ''daimyō'' of the Satsuma han, which spread over Satsuma, Ōsumi and Hyūga provinces in Japan. The Shimazu were identified as one of the '' tozama'' or outsider ''daimyō'' familiesAppert, Georges ''et al.'' (1888). in cont ...

and

Tokugawa clan The is a Japanese dynasty that was formerly a powerful '' daimyō'' family. They nominally descended from Emperor Seiwa (850–880) and were a branch of the Minamoto clan (Seiwa Genji) through the Matsudaira clan. The early history of this cl ...

also claimed to belong to this line. A group of Shinto shrines connected closely with the clan is known as the Three Genji Shrines (源氏三神社 ''Genji San Jinja'').

Family tree

The following family trees are a non-exhaustive listing of the Seiwa Genji and the clans that branched from the family. ''Legend: Solid lines represent blood relationship; dashed lines represent adoptions. An asterisk indicates a monk (who would not have been allowed to retain the Minamoto name).''

Emperor Seiwa's first five princes

Prince Sadazumi's descendants

Emperor Seiwa's other princes

Settsu Genji

Yamato Genji

Kawachi Genji

Yoshimitsu's descendants

Mitsumasa's descendants

Mitsuyoshi's descendants

Notes

{{reflist

References

*Sansom, George (1958). ''A History of Japan to 1334''. Stanford, California: Stanford University Press. *Turnbull, Stephen (1998). ''The Samurai Sourcebook''. London: Cassell & Co. Minamoto clan