is the remains of a castle structure in

Shūnan file:Tokuyama district Shunan city Aerial photograph.2008.jpg, 270px, Shūnan city center is a Cities of Japan, city in Yamaguchi Prefecture, Japan. , the city had an estimated population of 137,019 in 6828 households and a population density o ...

Yamaguchi Prefecture is a Prefectures of Japan, prefecture of Japan located in the Chūgoku region of Honshu. Yamaguchi Prefecture has a population of 1,377,631 (1 February 2018) and has a geographic area of 6,112 Square kilometre, km2 (2,359 Square mile, sq mi). ...

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

. Its ruins have been protected as a Prefectural Historic Sites. It is located on a 217 meter mountain. Wakayama castle was built by the Sue clan, one of the most important retainers of the

Ōuchi clan was one of the most powerful and important families in Western Japan during the reign of the Ashikaga shogunate in the 14th to 16th centuries. Their domains, ruled from the castle town of Yamaguchi in the western tip of Honshu island, compris ...

and became a home castle of the Sue clan in the Sengoku period.

Sue Harukata was a samurai who served as a senior retainer of the Ōuchi clan in the Sengoku period in Japan. He was the second son of Sue Okifusa, a senior retainer of the Ōuchi clan. His childhood name was Goro, and he previously had the name Takafusa ...

improved and strengthened the castle before the Tainei-ji incident. The castle was attacked by the

Mōri clan The was a Japanese clan, Japanese samurai clan descended from Ōe no Hiromoto. Ōe no Hiromoto was descended from the Fujiwara clan. The family's most illustrious member, Mōri Motonari, greatly expanded the clan's power in Aki Province. Durin ...

soon after the

Battle of Miyajima The 1555 was the only battle to be fought on the sacred island of Miyajima; the entire island is considered to be a Shinto shrine, and no birth or death is allowed on the island. Extensive purification rituals took place after the battle, to cl ...

, Harukata's son Nagafusa was defeated and he committed seppuku. It is believed the castle was demolished by the Mōri clan after the fall of the castle.

References

{{coord missing, Yamaguchi Prefecture Castles in Yamaguchi Prefecture Historic Sites of Japan Former castles in Japan Ruined castles in Japan Ōuchi clan