In September they signed a treaty by which della Rovere was relieved of all ecclesiastical censures and was left free to retreat to Mantua with all his artillery, as well as the rich library collected in Urbino by the former duke Federico III da Montefeltro.
In September, they signed a treaty under which della Rovere was freed from all ecclesiastical penalties and allowed to retreat to Mantua with his artillery and the rich library amassed by the previous duke Federico III da Montefeltro in Urbino.