Koerich Castle, Medieval castle ruins in Koerich, Luxembourg
Koerich Castle is a medieval ruin in Luxembourg featuring an 11-meter tall keep with walls measuring 3.5 meters thick. It sits in the Goeblange stream valley where remnants of a roughly 15-meter wide moat still remain.
Wirich I, Lord of Koerich and Seneschal of Luxembourg, built the fortress in the late 1100s using late Romanesque style. Gothic additions came in the early 1300s, followed by a major renovation around 1380 that strengthened its structure.
The south-western tower holds a chapel on its ground floor, showing how religious spaces were integrated into medieval fortifications. This blend of faith and defense was common in castles across the region during that period.
The castle ruins sit beside the Baroque church in the heart of Koerich and are easy to access. Pathways and seating areas are being added to make visits more comfortable for guests.
The 1380 renovation by Gilles of Autel added two 12-meter towers at the south wall, marking a shift from purely military use to residential living. This change shows how castle purposes evolved during the late medieval period.
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