Stock Photo: Military Parade at Campo di Marte, by Duccio di Buoninsegna, 1308 - 1311, 14th Century, tempera on panel, with gold ground. Italy. Tuscany. Siena. Cathedral. Front, main register. Detail of bare feet of St.John the Evangelist. The hem of blue dress/garment and red mantle/cloak. In the bottom, part of the inscription of the saint's name.