Prinsenkasteel

Prinsenkasteel, also known as Grimbergen Castle, is a historic site located in Grimbergen within the Flemish Brabant province of Belgium. Originally established in the 14th century as the residence of the powerful Berthout family, the structure replaced their earlier stronghold at Borgtberg following regional conflicts. The current ruins, situated within the scenic Prinsenbos Park, primarily date back to a reconstruction around the year 1500, which utilized the foundations of the previous medieval fortress. While much of the original complex was lost to sieges in the late 15th century led by Maximilian I and Albert III, parts of the keep remain from this turbulent period, representing a blend of medieval defensive origins and later residential modifications.

The castle gained its distinctive name, literally translating to "Princes Castle," in the late 17th century after Philippe-François de Glymes was elevated to the title of Prince by Charles II of Spain. Throughout the early modern era, the estate underwent significant changes, including damage during the War of the Austrian Succession followed by restoration and embellishment in the mid-18th century. Ownership eventually passed to the influential House of Merode through marriage in 1778, cementing its status as a princely domain. Today, the property is owned by the Grimbergen municipality and holds designated listed heritage status. Although only ruins remain, the site serves as an important historical landmark within the public park, offering visitors a glimpse into the region's aristocratic past and architectural evolution from a military fortress to a refined estate.