Open onto the cloister, the Abbots' Chapel, also called the Rosary Chapel, is a 15th century construction. In 1465, the objectives were to install the monastic library on its second floor. This edifice is divided by three bays and includes the choir which ends with a flat apse.
The vault constituting a cross rib-vaulting with pointed arches, carries painted murals characterised by the association of religious and profane themes (based on the Grotesque) and was made during the early part of the 16th century, for the Abbot Antoine de Marcenac. The representations of the Holy Face and the Holy Tunic, the symbols of the Evangelists in medallions or angel musicians, are set near hybrid creatures or poets' profiles in Roman antiquity style, all set in luxuriant surroundings of flourishes, festoons and volutes.
