Maastricht Roman castrum

Maastricht Roman castrum was a military fort from the 4th century with ten defensive towers and two gates positioned strategically at the Meuse River. The remains are visible today in museum cellars and beneath the Basilica of Our Lady.

Emperor Constantine ordered the construction of this fortress in 333 CE to protect the river crossing. The walls remained standing until the 10th century.

The name Traiectum ad Mosam reflects its role as a river crossing point in Roman times. Medieval street patterns in the area still follow the layout of the ancient fort.

You can view the remains in the cellar of the Derlon Museum and in the courtyard of the Basilica. The sites are centrally located and easily accessible.

The walls were built from local sandstone blocks approximately 2.3 meters thick, showing impressive Roman construction techniques. This building method allowed the structure to endure for centuries.

Location: Maastricht

GPS coordinates: 50.84798,5.69383

Latest update: December 12, 2025 14:26