The main core of the museum's collection of Gothic sculpture (approximately four hundred works) covers a period lasting from the end of the 13th century through to the beginning of the 14th century. The convent buildings (the chapter house, sacristy, and the Notre-Dame de Pitié chapel), which are all more or less contemporary with each other (from the 14th to the beginning of the 16th century) open onto the east gallery of the Augustins cloister. They provide a perfect and harmonious setting for these religious works that mainly originate from buildings in Toulouse