In 1184 Baldwin V, Count of Hainaut, built the first castle on the current site in Écaussinnes. The lords of Écaussinnes and their heirs the de Lalaings altered the original structure several times over the centuries.
In 1450 Marie de Lalaing married Jean II de Croÿ, descendant of the Counts (later Princes) of Chimay. By a quirk of inheritance, the castle later became the property of the Lalaing family again. They sold it in 1642 to the van der Burcht family.
In the 18th century the interior was redecorated with Rococo elements in the first floor of the Gothic hall.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.