Depiction after the description of Inferno in Dante Alighieri’s Divine Comedy. Guido da Montefeltro (1223-1298) was a contemporary of Dante. He was duke of Urbino and leader of the Ghibellines. Late in life he became a Franciscan monk. In Inferno Dante condemned Guido as a treacherous counsellor and explained that he had accepted to give treacherous advice to the pope’s enemies in return, when Pope Pave Bonifatius VIII (c. 1235-1303) would forgive Guido his sins.