Dudelange Castle, Medieval castle ruins on Mont St. Jean, Luxembourg.
The remains of Dudelange Castle spread across a forested hill, featuring foundations of towers, palace structures, living quarters, stables, and three stone wells.
The castle, completed in the early 16th century by the Lords of Gymnich, Boulay, Neufchâtel, and Hunolstein, was destroyed by French troops in 1552.
The site holds remnants of Gallo-Roman structures and later housed a church dedicated to Saint John the Baptist, making it an important pilgrimage destination.
Visitors can reach the castle ruins through a walking path from downtown Dudelange or by taking Bus 4 from Esch-sur-Alzette to Dudelange Scherrwee stop.
The castle stones were repurposed by local villagers as construction materials after its destruction, leading to the current state of the foundations.
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