 In early 1517 he presented himself under the walls of Verona to hire the troops which had besieged the city, now to be returned to the Republic of Venice.Della Rovere set off with an army of some 5,000 infantry and 1,000 horses which he entrusted to Federico Gonzaga, lord of Bozzolo, reaching the walls of Urbino on January 23, 1517.He defeated the Papal condottiero Francesco del Monte and entered the city hailed by the population.