Notre Dame du Val des Écoliers was a monastery of Augustinian canons regular in the city of Mons, Belgium, founded as a priory in 1252 at the invitation of Margaret, Countess of Hainaut.[1] It became an abbey in 1617 and was suppressed in 1796, during the French period.[2] The buildings were later used as an arsenal, a meeting hall, a warehouse, a factory, and a hospital, but were allowed to decay into considerable disrepair. Most of the old buildings were demolished in 1876, but one tower remained and was restored in 1892. It was classified as a monument in 1955 and is now a landmark. The monastic ruins were investigated by archaeologists in 2021 prior to being cleared to make way for an underground carpark and office space.[3] Initially expected to last a month, the dig would ultimately run from March to July, and exhumed about sixty sets of human remains dating from the 14th and 15th centuries.