The castle was originally surrounded by a moat that connected the two adjacent lakes, essentially creating an island fortress.
During the Thirteen Years' War, the castle was captured by the Polish army in 1468.
It served as the seat of Polish starosts following the Second Peace of Thorn in 1466.
The castle foundations contain masonry reused from the earlier wooden and earthwork fortifications of the Old Prussian tribe of Pomesanians.
A significant portion of the castle was deliberately dismantled in the 19th century to provide building materials for local residential construction.
The high tower, or 'bergfried,' which once stood as a primary defensive and observation point, no longer survives in its original complete form.
Archaeological excavations on-site have uncovered medieval coins and military gear dating back to the 14th and 15th centuries.
The site is often referred to as a 'water castle' due to its strategic position on the narrow isthmus between two lakes.
The Teutonic castle in Sztum is a 14th-century fortress built by the Teutonic Order on the site of a former Old Prussian stronghold. It served as a summer residence for the Grand Masters of the Teutonic Order, including Konrad von Jungingen. The layout follows a triangular plan, adapted to the narrow peninsula between Lake Sztum and Lake Barlewickie. Much of the structure was demolished in the 19th century, leaving the western wing, the gateway, and parts of the defensive walls. Restoration efforts in the 21st century have stabilized the remaining historical fabric and established a cultural center within the grounds. The architecture retains characteristic red-brick gothic elements typical of regional Teutonic fortifications. It currently houses the Sztum Cultural Center, which oversees exhibitions focused on local history and medieval artifacts.
From the edge of Lake Sztum, looking back at the western wing and the gatehouse reflections in the water.
Walk the perimeter trail along the lakeshore for the best view of the external defensive walls.
Check the local cultural center's calendar for medieval reenactment events or artisan fairs held in the courtyard.
Wear comfortable footwear as parts of the courtyard and nearby paths may have uneven cobblestone or gravel surfaces.
Do not attempt to climb the unrestored or restricted sections of the defensive walls for safety reasons.
The site is typically closed on certain public holidays; seasonal outdoor event schedules vary annually.
