here for the first time mary was depicted directly alongside jesus christ as his companion the mosaic still expresses representation directly but the angels are missing. thus the picture clearly indicates that the central figure of the new testament jesus christ the redeemer is superior to the angels in the hierarchy even though he was a human being. the upper basilica of san clemente in rome was built at the beginning of the twelfth century . the by exam time courtly order is abandoned the christian cross dominates the ordering of the spheres still expresses numba and order but more important is the concentration on the christian visual symbols they signify the opposites of power christ as the holy land the center of his flock.