Eglise Saint-Dagobert de Longwy, Historical church in Longwy-Haut, France.

Saint-Dagobert Church stands on Place du Colonel Darche in Longwy. Its classical facade of light tan, gray and beige stone blocks has three arched openings, the central one with a dark wooden door, and a triangular pediment enclosing a round window. The nave was rebuilt in 1866–1867 as a vaulted hall with two rows of cylindrical pillars.

Built in 1683–1684 over a 10th-century predecessor on what became Place du Colonel Darche, the church was turned into a military store during the Revolution, its interior devastated in 1793 and restored from 1812. Bombarded during the 1815 and 1871 sieges, it was rebuilt in 1819–1822 and 1871–1872, then enlarged in 1866–1867 with two rows of cylindrical pillars and a polygonal choir with ambulatory, consecrated 10 September 1867.

Inside, you can see Art Deco stained glass windows and a statue of the Virgin Mary that hold meaning for the local community. These artworks shape how the church interior looks and feels to visitors.

The church stands on Place du Colonel Darche in Longwy-Haut, the upper town, not on Rue de l'Hôtel de Ville. The entrance is through the central arched doorway of the classical facade. The building is classified as a monument historique, so opening hours vary; check locally before climbing up to the old town.

The sundial on the church dates from 1718, not a lunar dial, and is linked to the 1926 Gothic-style organ built by François Didier. The facade itself was partly restored in 1869, and the tower lost a storey after the 1871 bombardment, leaving two levels.