The museum is housed in the former Abbey of Saint-Remi, founded in the sixth century and which had been keeping since 1099 the relics of Saint Remigius (the Bishop of Reims who converted Frankish king Clovis I to Christianity in 496).
In 1005 the abbot Aviard undertook to rebuild the church of St-Remy, and for twenty years the work went on uninterruptedly before vaulting collapsed, no doubt from insufficient buttressing.
The abbey library and its schools were of such high repute that Pope Alexander III wrote a commendatory letter to the Abbot Peter, which survives.
The purpose of replacing the short eastern section of the Romanesque church was to create a grander and more spacious interior for the shrine of St Remy.
The Abbey of Saint-Remi, together with the nearby cathedral of Notre-Dame de Reims and Palace of Tau, became a UNESCO World Heritage Site in 1991.