[1] When he died the lords of Putten en Strijen acquired the castle via his daughter.

Van Duvenvoorde was a very rich man and was powerful at the courts of Holland, Hainaut, and Brabant.

In 1572 the loyalist castellan Leonard van Boischot occupied the castle against the Geuzen.

It had a keep, the current tower, on the northwest point and there were wings on the north, west and south sides.

[1] Willem van Duvenvoorde added an eastern wing, possibly with another square tower on the southeast side.

[2] In 1974 a major excavation was performed on the terrain by amateur archaeologists led by Jan Oomen.

This revealed a water gate on the west side of the castle grounds, facing the outer moat.

On the east side of the northern wall the team found the remains of a trash tube (stortkoker) with many artefacts below it.

[1] In 2015, an excavation with ground drills showed that the terrain of both the castle and the outer bailey was covered by a debris layer of a few decimeters.

This confirms that Willem van Duvenvoorde resided in the newer parts of the castle when he was present.