Château de Corroy-le-Château is one of the best-preserved medieval castles in the Benelux, located near Gembloux in the province of Namur, Belgium. Originally constructed between 1220 and 1230 with massive round towers and a protective moat, this pentagonal fortress features stunning 18th and 19th-century interiors with numerous artworks. The castle chapel contains secret passages used in medieval times. Remarkably, it has never been sold and has been continuously inherited by noble families including the Marquises of Trazegnies, making it a living monument to centuries of Belgian aristocratic history.