Isabelle d’Este, daughter of the Duke of Ferrara, born into privilege and the political and artistic turbulence of Renaissance Italy, is a stunning black-eyed blond and an art lover and collector. Worldly and ambitious, she has never envied her less attractive sister, the spirited but naïve Beatrice, until, by a quirk of fate, Beatrice is betrothed to the future Duke of Milan. Although he is more than twice their age, openly lives with...