Stock Photo: The Legend of the Cross of Victory of Constantine, by Pietro di Benedetto dei Franceschi known as Piero della Francesca, 1452 - 1462, 15th Century, fresco. Italy, Tuscany, Arezzo, San Francesco church, Major Chapel, right wall, lower order. Detail. Half bust of the knight riding a white horse, in the foreground left, armor: cuirass, helmet.