Lucrezia Borgia April 18, 1480 - June 24, 1519) was the daughter of Rodrigo Borgia, the powerful Renaissance Valencian who later became Pope Alexander VI, and Vannozza dei Cattanei. Her brothers included Cesare Borgia, Giovanni Borgia, and Gioffre Borgia.
Lucrezia's family later came to epitomize the ruthless Machiavellian politics and sexual corruption alleged to be characteristic of the Renaissance Papacy. In this story Lucrezia was cast as a femme fatale, a role she has been portrayed in in many artworks, novels and films.
No authentic portrait of Lucrezia is known, though several paintings, such as Bartolomeo Veneziano's fanciful portrait (see illustration) have been said to depict her. Often these images are simply part of Lucrezia's myth.
Enough is known about the historical Lucrezia to be certain that the stories about her active involvement in her father's and brother's crimes are true. Her father and/or brother certainly arranged several marriages, for her, to important or powerful men, in order to advance their own political ambitions. Lucrezia was married to Giovanni Sforza (Lord of Pesaro), Alfonso of Aragon, Duke of Bisceglie, and Alfonso d'Este (Prince of Ferrara). Tradition has it that Alfonso of Aragon was an illegitimate son of the King of Naples and that Cesare may have had him murdered after his political value waned.