The Castle of Louvain, also known as Louvain Castle, is a historic fortress located in the city of Louvain, Belgium. Originally built in the 12th century, it served as a royal residence and military stronghold. The castle has undergone various renovations and restorations over the centuries, reflecting different architectural styles. Today, the Castle of Louvain is a popular tourist attraction, offering visitors a glimpse into the region's medieval history. Although much of the original structure has been lost, the remaining ruins and surrounding park provide a picturesque setting for exploration and relaxation.