[1] In 1639, Thomas Bidart built the central part of today's castle as a comfortable house surrounded by walls and towers, two of which still stand.
Originally from Liège in Belgium, Bidart, who was a pioneer of Luxembourg's iron and steel industry, named the building Maison des Forges (House of the Ironworks).
During the Thirty Years' War, he tapped the region's many water sources and exploited its timber and iron, manufacturing arms at a foundry close to the old castle.
Between 1740 and 1750, Lambert Joseph de Marchant et d'Ansembourg further improved the gardens and extended the buildings on the north side of the main courtyard so that they could be used as stables and lodgings for the castle staff.
In 1759, Count Lambert Joseph added the impressive Baroque gateway bearing the arms of de Marchant of Ansembourg and Velbruck.
Students had complete access to the castle and its furnishings, including the Music Room that had pink gilt furniture and a grand piano.