The Ōuchi family (大内氏 Ōuchi-shi?) was one of the most powerful and important families in Japan during the reign of the Ashikaga shogunate in the 12th to 14th centuries. was a feudal military dictatorship ruled by the Shoguns of the Ashikaga family Their domains, ruled from the castle town of Yamaguchi, comprised six provinces at their height, and the Ōuchi played a major role in supporting the Ashikaga in the Nanboku-cho Wars against the Imperial Court. is the capital city of Yamaguchi Prefecture, Japan. It is the smallest prefectural capital in Japan Before the modern prefecture system was established the land of Japan was divided into tens of kuni (国 countries) usually known in The, spanning from 1336 to 1392, was a period that occurred during the early years of the Muromachi period of Japan 's history The Ōuchi remained powerful up until the 1560s, when they became eclipsed by their vassals, the Mōri.
Based in Suō Province, towards the western end of Honshū, the Ōuchi were among the primary families to be involved in foreign trade and relations, particularly with China. Suō was also the Japanese name for Suao Yilan, Taiwan was a province of Japan in the area that is today the eastern part of or Honshu is the largest Island of Japan. The nation's main island, it is south of Hokkaidō across the Tsugaru Strait, north of Following the Ōnin War (1467-1477), a strong rivalry developed between the Ōuchi and the Hosokawa family, who were now in power. The was a civil war from 1467 to 1477 during the Muromachi period in Japan. The was a Japanese samurai clan, descended from Emperor Seiwa (850-880 and a branch of the Minamoto clan, by the Ashikaga clan. The two clashed at Ningpo in 1523, and as a result the Chinese closed Ningpo to Japanese traders. Ningbo ( literally "Tranquil Waves" is a Seaport with sub-provincial administrative status. By the time the Ōuchi were again allowed to send a ship a few years later, the trade was dying out. The family's trade with China fully came to an end by 1548, their monopoly broken by merchants from the seaport of Sakai. is a city located in Osaka Prefecture, Japan. It has been one of the largest and most important Seaports of Japan since the Medieval era The Ōuchi also housed the Portuguese Jesuit missionary Francis Xavier for a time in 1551. The Society of Jesus ( Latin: Societas Iesu, SJ and SI or SJ, SI) is a Catholic religious order Saint Francis Xavier ( Konkani / Konknni: Sam Fransisku Xavier/ Sanv Fransisk Xavier Basque: San Frantzisko Xabierkoa Spanish: San Francisco
As a result of their wealth and trading contacts, the Ōuchi gained renown in the worlds of art and culture as well. They possessed countless items of cultural and artistic significance and beauty, from Japan and China, as well as from further abroad. Particularly famous was the invitation by Ōuchi Masahiro of the famous painter Sesshū to Yamaguchi in 1486. was a general in the Ōnin War, serving Yamana Souzen. He battled numerous times with Yamana's rival Hosokawa Katsumoto, at one point commanding 20000 or often also simply Sesshū, 1420-1506 was one of the most prominent masters of Suibokuga (ink painting and a Rinzai Zen Buddhist