 One had to cross the medieval keep to gain entrance through the walls The church opened into the cloister, noted for its great arches, and the various premises of the monastery.The chapter house (from the early 12th century) was the vital center of monastic life; the monks resided in the main building built in the 17th century.The Romanesque columns of the former abbot's residence support the current Neoclassical one, constructed in the 18th century.