Château de Frœnsbourg, Medieval rock castle in Lembach, France.
The Frœnsbourg Castle stands on an isolated sandstone spur with two main buildings and rooms carved into the rock at 310 meters elevation.
Records first mention the castle in 1235, then in 1269 under the Frundsperg brothers, before its destruction in 1349 and reconstruction in 1358.
The troglodytic halls and staircases cut into sandstone demonstrate medieval construction techniques in the Alsace region.
Reaching the ruins requires a 40-minute walk on a forest path from the Frœnsbourg farm between Lembach and Obersteinbach.
The castle features a Gothic arch doorway dated 1481 and a flying bridge system for accessing the main structure.
Location: Lembach
Inception: 13 century
GPS coordinates: 49.03667,7.74333
Latest update: June 23, 2025 09:51
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