Son of Pandolfo Petrucci, tyrant of Siena. In early April, 1516, Alfonso's brothers Borghese (the successor of Pandolfo Petrucci) and Fabio (who was still a minor at that point) had given Alfonso full power for the liquidation of the landed property belonging to the inheritance from their father. Shortly before the time this document was written, Alfonso gave this power to a gentleman in his retinue named Marcello de Gazzaronis, a knight of the order of St. John of Jerusalem.
From the description of Alfonso Petrucci property instructions, 1516. (University of Pennsylvania Library). WorldCat record id: 475058432
From the description of Alfonso Petrucci public instrument, 1516. (University of Pennsylvania Library). WorldCat record id: 475058501
