Merode Castle in Westerlo, Antwerp, is a remarkable late medieval hill castle with roots possibly traced to a Roman watchtower or Frankish villa. The castle's central keep likely dates to the late 14th century when the lords of Wesemael occupied the site. Since 1484, the noble House of Merode has continuously resided at the castle, gradually transforming it from a defensive fortress to a luxurious noble residence from the 16th century onward. The castle is set within a 12-hectare English landscape park featuring ponds connected to the original moat.