On the edge of Vic-sur-Seille lies the former episcopal castle, an impressive remnant of the power of the bishops of Metz. Built from the end of the 12th century by Bishop Bertram, it served as both the residence and the administrative centre of the secular authority of the diocese.
The castle was expanded in the 13th century into a pentagonal complex, fortified with semicircular towers and a deep moat. Under Bishop Thierry Bayer de Boppard (1365–1384), important restorations were carried out, including the construction of a south-west wing with access to the gardens and the “Grand Parc”.
Of the original complex, only part of the residential building on the west side remains today, recognisable by the windows with niches. The most striking structure is the châtelet, the fortified entrance gate from the 15th century, with its white limestone machicolations and traces of a drawbridge. After its restoration in 2008, the castle is once again visible as a silent witness to the medieval power and strategic location of Vic-sur-Seille, especially in the context of salt mining and the rivalry with the Dukes of Lorraine.