In the late Heian period, Minamoto rivalry with the Taira culminated in the Genpei War (1180–1185 AD). The Minamoto emerged victorious and established Japan's first shogunate in Kamakura under Minamoto no Yoritomo, who appointed himself as shōgun in 1192, ushering in the Kamakura period (1192–1333 AD) of Japanese history. The name "Genpei" comes from alternate readings of the kanji "Minamoto" (源 Gen) and "Taira" (平 Hei).
The Kamakura Shogunate was overthrown by Emperor Go-Daigo in the Kenmu Restoration of 1333. Three years later the Kenmu government would then itself be overthrown by the Ashikaga clan, descendants of the Seiwa Genji who established the Ashikaga shogunate (1333 to 1573).
The Minamoto clan is also called the Genji (源氏, "Minamoto clan"), or less frequently, the Genke (源家, "House of Minamoto"), using the on'yomi readings of gen (源) for "Minamoto", while shi or ji (氏) means "clan", and ke (家) is used as a suffix for "extended family".[6]
The Seiwa Genji's fortunes declined in the Hōgen Rebellion (1156), when the Taira executed most of the line, including Minamoto no Tameyoshi. During the Heiji Disturbance (1160), the head of the Seiwa Genji, Minamoto no Yoshitomo, died in battle.[9]: 256–258 Taira no Kiyomori seized power in Kyoto by forging an alliance with the retired emperors Go-Shirakawa and Toba and infiltrating the kuge. He sent Minamoto no Yoritomo (1147–1199), the third son of Minamoto no Yoshimoto of the Seiwa Genji, into exile. In 1180, during the Genpei War, Yoritomo mounted a full-scale rebellion against the Taira rule, culminating in the destruction of the Taira and the subjugation of eastern Japan within five years. In 1192, he received the title shōgun and set up the first bakufu in the history of Japan at Kamakura—Kamakura shogunate.[9]: 275, 259–260, 289–305, 331
The protagonist of the classical Japanese novel The Tale of Genji (The Tale of Minamoto clan)—Hikaru Genji, was bestowed the name Minamoto for political reasons by his father the emperor and was delegated to civilian life and a career as an imperial officer.
Even within royalty there was a distinction between princes with the title shinnō (親王), who could ascend to the throne, and princes with the title ō (王), who were not members of the line of imperial succession but nevertheless remained members of the royal class (and therefore outranked members of Minamoto clans). The bestowing of the Minamoto name on a (theretofore-)prince or his descendants excluded them from the royal class altogether, thereby operating as a reduction in legal and social rank even for ō-princes not previously in the line of succession.
Many later clans were formed by members of the Minamoto clan, and in many early cases, progenitors of these clans are known by either family name. There are also known monks of Minamoto descent; these are often noted in genealogies but did not carry the clan name (in favour of a dharma name).
There were 21 branches of the clan, each named after the emperor from whom it descended. Some of these lineages were populous, but a few did not produce descendants.
Saga Genji
The Saga Genji are descendants of Emperor Saga. As Saga had many children, many were bestowed the uji Minamoto, declassing them from imperial succession. Among his sons, Makoto, Tokiwa, and Tōru took the position of Minister of the Left (sadaijin); they were among the most powerful in the Imperial Court in the early Heian period. Some of Tōru's descendants in particular settled the provinces and formed buke. Clans such as the Watanabe, Matsuura, and Kamachi descend from the Saga Genji.[14]
Minamoto no Anbō (secular name Minamoto no Shitagō), great-grandson of Tōru
Watanabe no Tsuna (his official name was Minamoto no Tsuna, who resided at Watanabe in Settsu province, and took the name of the place), great-great-grandson of Tōru
These were descendants of Emperor Yōzei. While Minamoto no Tsunemoto is termed the ancestor of the Seiwa Genji, there is evidence (rediscovered in the late 19th century by Hoshino Hisashi) suggesting that he was actually the grandson of Emperor Yōzei rather than of Emperor Seiwa. This theory is not widely accepted as fact, but as Yōzei was deposed for reprehensible behaviour, there would have been a compelling motive to claim descent from more auspicious origins if it were the case.
Kōkō Genji
These were descendants of Emperor Kōkō. The great-grandson of his firstborn Prince Koretada, Kōshō, was the ancestor of a line of busshi, from which various styles of Buddhist sculpture emerged. Kōshō's grandson Kakujo established the Shichijō Bussho workshop.
These were descendants of Emperor Reizei. Though they are included among the listing of 21 Genji lineages, no concrete record of the names of his descendants made Minamoto is known to survive.
This line consisted solely of Emperor Go-Saga's grandson Prince Koreyasu. Koreyasu-ō was installed as a puppet shōgun (the seventh of the Kamakura shogunate) at a young age, and was renamed "Minamoto no Koreyasu" a few years later. After he was deposed, he regained royal status, and became a monk soon after, thereby losing the Minamoto name.
Three Genji Shrines (源氏三神社, Genji San Jinja) - A group of Shinto shrines connected closedly with the members of Seiwa Genji branch of the Minamoto clan.
Sasaki Shrine(沙沙貴神社) - a Shinto shrine connected closely with the members of Uda Genji branch of the Minamoto clan.
Literature and arts
The Tale of Genji (源氏物語, Genji monogatari, The Tale of the Minamoto clan) by Murasaki Shikibu, an important 11th-century classical Japanese novel.
The Tale of the Heike (平家物語, Heike Monogatari, The Tale of house of Taira), a 14th-century epic poetry compiled of the struggle between the Minamoto clan and the Taira clan for control of Japan at the end of the 12th century in the Genpei War (1180–1185).
^Frederic, Louis (2002). Japan Encyclopedia. Cambridge, Massachusetts: Harvard University Press.
^Kuehn, John T. (2014). A military history of Japan: from the age of the Samurai to the 21st century. Santa Barbara, Calif.: Praeger. p. 36. ISBN978-1-4408-0394-9.
^ abcdSansom, George (1958). A History of Japan to 1334. Stanford University Press. pp. 241–242, 247–252. ISBN0804705232.