Enthroned Madonna, Christ and the Apostles. Stories of the Virgin. Christ and Mary Figure of the Church, by Pietro de' Cerroni known as Pietro Cavallini, 13C artist, 1291, 13th Century, mosaic. Italy, Lazio, Rome, Santa Maria in Trastevere Church. Whole artwork. Front view of the apse concha: conch the Virgin Mary throne Jesus Christ the Apostles: Disciples the Annunciation the Nativity the Adoration of the Magi the Presentation in the Temple lambs gold mosaic (PHOTOGRAPHI.