Francesca Terwilliger (née Vendetto) is Sideshow Bob's wife. She is Italy. They have a son named Gino Terwilliger. At first she knew nothing of her husband's multiple murder attempts. When she does become aware, she helps Bob try to kill the Simpsons family. She and Gino, along with Sideshow Bob's Dame Judith Underdunk, Robert Terwilliger Sr., and brother attempted to have Bart incinerated to get revenge.