Pisa Cathedral: View of the piazza looking northeast, with the baptistery at left and the duomo in the center

The cathedral is a basilica with double aisles of different widths, a matroneo ('women's gallery') and an apsidal east end. The new fa\u00E7ade was begun (ca. 1110-1125) by Rainaldo and his workshop, who probably also lengthened the nave by three bays. The cathedral was consecrated in 1118 under Pope Gelasius (reigned 1118-1119). The fa\u00E7ade was possibly completed ca. 1165 by Guglielmo and his school.