The mid-level of the transept over the portal, built in about 1230, has lancet windows and a statue of Virgin, flanked by Saint Peter and Saint Lawrence. Above this is a colourful clock with the signs of the zodiac. Above this is a flamboyant Gothic balustrade with an original sundial from about 1493, and above that are two small rose windows from the same period. Following their destruction during the French Revolution, several of the sculptures have been replaced in the 19th century by works by Philippe Grass, Jean-Étienne Malade, and Jean Vallastre.