The labyrinth was the shape of a complex square with cut corners and sides of . The labyrinth was made of soft stone that wore out beneath the feet of pilgrims. This stone was of the same kind as Pierre Libergier's tombstone that is now exhibited in the cathedral. The people in the corners of the labyrinth are successive master masons of the cathedral: • (Top right) :
Jean Orbais (1211-1231) made the plans of the cathedral and began the apse. • (Top left) : (1231-1247) began the northern portals. • (Bottom left) : (1247-1255) began the arches and portals on the western façade. • (Bottom right) :
Bernard de Soissons (1255-1290) made five vaults of the
nave and the great rosace. Bernard de Soissons was in charge during the inauguration of the labyrinth. There is no trace of the fifth (and probably best-known) contractor,
Robert de Coucy, who was in charge from 1290 to 1311 and who oversaw the carpentry and the roof. The masons are represented hard at work, with their tools in hand. For example, Jean d'Orbais appears to draw a map on the floor. There were also two other silhouettes on each side of the entrance of the labyrinth; however, these could not be identified because they were already almost completely eroded. == History ==