GIA4755917: Portrait of an Italian physicist and mathematician Fra Luca Pacioli with his pupil Guidobaldo de Montefeltre (Montefeltro), Duke of Urbino (Urbino) (1445 - 1514). Painting by Jacopo de Barbari. 1495. Naples, Museum of Capodimonte., Barbari, Jacopo de' (1440/50-a.1515) / Museo e Real Bosco di Capodimonte, Naples, Campania, Italy / Bridgeman Images