When talking about Thionville’s medieval past, we tend to think more about its Luxembourg history, which started in the 10th century. Here, some vestiges still bear witness to this influence. Starting with the Count’s Door which separated the Castle of the Counts of Luxembourg from the town. Located on the banks of the Moselle, along the ramparts, the castle had a keep, the Tour aux Puces.
In turn a shelter, a grain store, a provost marshal’s house, a gunpowder magazine, and a military prison, its name comes from a strange tale. Called Peetz-turm by Luxemburgers, it was translated as Tour aux Puits owing to the installation of the town’s wells within its walls. When the French arrived in the 17th century, they mistakenly translated it as Tour au Puces. A translation error which inevitably gave rise to many legends justifying its name. With 14 sides, its tetradecagonal shape fascinates and lends it power.