Tanesato Castle, Mountain fortress in Ajigasawa, Japan
Tanesato Castle is a mountain fortress ruin on elevated terrain near the Akaishi River with visible stone walls and defensive structures from the Muromachi period. The site includes several fortification elements and a museum displaying artifacts related to the site's history.
The fortress was built in 1491 by Ōura Mitsunobu under orders from the Nanbu clan to serve as a regional stronghold. It was demolished in 1615 as the clan's authority in the area diminished.
The Shiro-hachimangu shrine on the grounds draws visitors interested in local religious practices and seasonal celebrations. Locals come here to maintain connections with their regional heritage and pass down family traditions.
The associated museum operates seasonally from May through October on weekends and displays historical items from the site. Visitors should be prepared for hillside terrain and unpaved pathways when exploring the location.
The founder Ōura Mitsunobu is said to have been buried on the grounds in full armor after his death in 1526. This local legend speaks to the warrior's deep connection to the place he created.
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