The Borgias - Season 1 Episode 5 -

Alternately neglected and abused by her cruel husband, Lucrezia has an affair with Paolo, a handsome stable boy; Cesare strikes a bargain with Machiavelli: deny French troops passage across his masters' lands in exchange for suppression of Savonarola, a fiery preacher of anti-Medici sermons; in love with baroness Ursula, Cesare takes drastic action to get rid of her husband.