irefiordiligi:IV century roman mosaics inside the Mausoleum of Santa Costanza, monumental complex of
irefiordiligi:IV century roman mosaics inside the Mausoleum of Santa Costanza, monumental complex of St. Agnes Outside the Walls, RomeBuilt by Costantina, daughter of Costantin I, as a mausoleum near the basilica erected above the catacombs of St. Agnes , it would later become known as the church of Santa Costanza, when Constantina was venerated as saint. -- source link