Schloss Lontzen, Protected castle in Lontzen, Belgium

Schloss Lontzen is a moated castle on Schlossstraße in Lontzen, in the German-speaking Community of Belgium. The present house has a roughly square plan under a mansard roof, two short wings and a stone bridge over the moat; a modern chapel stands against the west wall. Above the entrance gate sits a semicircular pediment with the Grand'Ry coat of arms.

The castle traces back to a residential tower built in the 13th century, which was destroyed in 1288 during the War of Limburg Succession. It was rebuilt and altered several times in the centuries that followed, gradually taking on the form it has today.

Above the entrance gate, the Grand'Ry family coat of arms is carved into a semicircular arch, pointing to one of the main families who shaped the building. On the southern side, heraldic symbols of the Harscamp and Rolshausen families help trace the castle's ownership across different periods.

The castle is privately owned and not open to visitors, so only the exterior can be seen from outside. Walking around the perimeter gives a good view of the moat, the drawbridge, and the details on the facades.

Two round towers from the original outer enclosure still stand, one near the entrance and one that overhangs the decorated southern portal. Their survival shows that the castle was built on the remains of a medieval fortified enclosure.