Innocent III [1198-1216] ordered the creation of the large mosaic in the apse (24 meters wide and 12 meters long), which at present looks much the same as it did when it was completed centuries ago. Later Pope Honorius III [1216-1227], called on another group of Venetian artists who had worked on the Basilica of Saint Mark in Venice to complete the team of mosaicists for the project. The iconography and technique are inspired by the Byzantine tradition. The mosaics were finished in 1279 under Pope Nicholas III [1277-1280].