Teufelsburg, Medieval castle ruin in Rüti bei Büren, Switzerland.
Teufelsburg is a castle ruin in Rüti bei Büren situated on a wooded hillside. The site displays the traces of medieval defensive structures with visible ramparts still marking its perimeter.
The fortress originated in the Middle Ages under the ownership of the Counts of Buchegg. In 1391, Elisabeth von Buchegg sold the already-deteriorating structure to the city of Solothurn.
The name Teufelsburg may derive from the personal names Theobald or Diebold/Tiebold, though no known historical figure of the 10th or 11th century can be linked to them. The site is a class B Swiss cultural property of regional significance.
The site sits within forested countryside and is reachable on foot from nearby hiking trails. The ruins themselves are freely accessible, though the wooded terrain and slopes call for sturdy footwear.
The name Teufelsburg ("Devil's Castle") may derive from the personal names Theobald or Diebold/Tiebold, though no known 10th- or 11th-century figure can be linked to them. The site is a motte with a 15-metre hill and a flattened top 13 metres across, ringed by seven ramparts three to five metres high.
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