The Château de Pierrefort is a ruined mediaeval castle in the commune of Martincourt. It was built in 1306. In 1300, Pierre de Bar, younger son (among 13 siblings) of Theobald II, Count of Bar, received from his older brother Henri III de Bar among other estates, the lands of Martincourt and Mamey.
References:The first written record of church in Danmark locality date back to the year 1291. Close to the church are several stones with a Christian text and cross inscribed. The oldest parts of the present red-brick church are from the 1300s. In the late 1400s the church was enlarged to the appearance it has today. The church has been modified both internally and externally several times, among other things after the fires in 1699 and 1889. There are lot of well-preserved mural paintings in the walls.