
Grimbergen Castle, commonly known as Prinsenkasteel or Prince's Castle, stands in Grimbergen, Flemish Brabant, Belgium. Serving as the residence of the lords of Grimbergen from the 14th century, the castle's oldest surviving sections date to around 1500, including a large gate tower and corner tower. The castle earned its iconic name in 1686 when Filip Frans van Bergen became Prince of Grimbergen. Heavily damaged during World War II when occupying forces used it as a munitions depot, only the donjon and a round corner tower remain standing today, connected by a façade. The castle sits on a moated island within Prinsenbos forest and is not currently accessible to the public.