Caterina Sforza (1463 – 1509) was the Countess of Forlì and Imola, and the daughter of Galeazzo Maria Sforza, the Duke of Milan. She was engaged to Pope Sixtus IV's nephew, Girolamo Riario, at only 10 years of age, and consummated the marriage at 14. As countess of Forlì, she became a strong ally of the Assassin Order, meeting the Assassin Ezio Auditore da Firenze after her husband Girolamo had her trapped on a small island in Romagna. Eight years later, Caterina had her husband killed by the Orsi brothers after finding out that he was working for the Templars, along with being a poor husband.