| Ōuchi-shi Yakata | |
| Nativename-A: | Japanese: 大内氏館 |
| Location: | Yamaguchi Prefecture, Japan |
| Type: | Flatstyle castle |
| Ownership: | Ōuchi clan |
| Condition: | ruins |
| Built: | 14C |
| Builder: | Ōuchi Hiroyo or Ōuchi Norihiro |
| Demolished: | 1557 |
| Past Commanders: | Ōuchi Yoshinaga |
was the fortified residence of the Ōuchi clan in Yamaguchi, Japan. Ōuchi-shi Yakata has been designated as a National Historic Sites along with Ryōun-ji temple.[1] [2] [3]
It was a base of the Ōuchi clan who were feudal lords and thrived during the Muromachi period to Sengoku period.[2] Its ruins have been protected as a nationally designated historic site.
In 1556, Ōuchi Yoshinaga built Kōnomine Castle as a supporting castle of Ōuchi-shi Yakata because Ōuchi-shi Yakata was considered unsuitable for withstanding a siege.[4] [5] but Mōri Motonari`s army advanced to Suō Province, Ōuchi Yoshinaga left Ōuchi-shi Yakata and Kōnomine Castle without resistance.[6]
The castle was listed as one of the Continued Top 100 Japanese Castles in 2017.[7] [8]