Prinsenkasteel ('Prince Castle') was founded in the 14th century by the lords of Grimbergen. The present castle was built around 1500 on the foundations of the previous fortress. In 1686 the Count of Grimbergen, Philippe-François de Glymes, was given the title of Prince by Charles II of Spain. The castle then became a princely estate, hence its name. After being damaged during the War of the Austrian Succession, it was restored in 1745 and embellished in the 1770s.
From 1901 to 1933, Premonstratensians from the abbey of Sainte-Anne de Bonlieu-sur-Roubion, expelled from France following the expulsion of religious congregations, were welcomed in the castle.
The castle ruins were bought by the municipality of Grimbergen in 1947. In 1978, the municipality also acquired the annex building, now called the Guldendal, which was formerly used as a stable, a carriage house and service building.
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.