The 14th-century cloister attached to the church of Saint-Maur is the oldest intact structure in Hattonchâtel, and the most architecturally significant. Its low arcades of limestone, worn smooth by seven centuries of Lorraine winters, enclose a small courtyard that feels genuinely medieval — a rarity in a region that was fought over so destructively in 1914–1918.
Access is through the village church. The cloister is modest in scale but well-proportioned, and the carved details on the capitals and doorways reward close attention. In summer the village association sometimes holds evening concerts here, the acoustics surprisingly good under the stone vaulting.