In about 1567, Frédéric de Hagen-Fleckenstein reconstructed the castle, placing the new buildings around a large rectangular courtyard.
The old square-shaped tower dating back to the castle's Gothic origins remained as part of the new complex.
[2] In 1753, Arnold-François von Daun, baron de Tornaco, bought the castle and moved in with great ceremony.
It also houses the headquarters of the Centre Virtuel de la Connaissance sur l'Europe (CVCE) .
[4] The CVCE is a research and documentation centre which seeks to provide digital access to sources relating to the European integration process.