Old mosaics and Romanesque sculptures from the former abbey are on display in this small museum, which occupies a restored 13th-century chapel that adjoined the abbey cloisters. Exhibits retrace the abbey’s long saga and the life of the titular saint, who founded France’s first Benedictine abbey just outside Tours in the fourth century. The chapel location is fitting since the word "chapel" actually derives from the legend of Martin. As a young Roman soldier he shared
his cape (or "capella") with a beggar and then had a vision of Jesus; small churches holding relics of the cape became known as chapels, and soon all small churches took the name.