Awesome Search Japan

Shōzui Castle

Shōzui Castle (勝瑞城, Shōzui-jō) was a Muromachi to Sengoku period Japanese castle located in the town of Aizumi, Itano District, Tokushima Prefecture, Japan. Its ruins have been protected as a National Historic Site since 2001, with the area under protection expanded in 2015.[1]
Type:  flatland-style Japanese castle
Built:  c.12th century  
Builder:  Ogasawara Nagakiyo  

Shōzui Castle  Click to go to Wikipedia