Cortewalle Castle dates back to the 15th century, and is one of the oldest in the Waasland. It is built of white sandstone, in Flemish Renaissance style. For centuries it was in the possession successively of the Triest, Goubau and de Brouchoven de Bergeyck families, until the Brouchovens sold it to the municipality of Beveren, who use it for the storage of the extensive and important De Bergeyck archives.
Today Cortewalle castle hosts the Municipal Local History Museum with a rich collection of lace and a restored Aubusson tapestry.
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.