Adjoining the north of the cathedral it's made up of galleries from different ages, the oldest being Romanesque. The polychromy of the arch stones, red, ochre, white or black lozenge corner pieces forming mosaics, calls to mind Islamic art. The Romanesque grille of the west gallery, and the cornice, which runs all around the cloister, delicately decorated and illustrating with gusto the bestiary of the Middle Ages, as well as the pilasters at the entrance to the chapter house will catch your eye.