This lovely old house, converted from a 17th-century convent and just down a cobblestone street from the castello, could set the gold standard for B&Bs everywhere. The four rooms are furnished with family pieces, including some serious antiques, and share a flowery courtyard; one especially large double has an extra bed and a kitchenette. An excellent breakfast is served in the family living room, and the gracious hosts lend bikes and dispense advice about the best ways to enjoy their beloved Ferrara. They also rent a few one- and two-bedroom apartments in an adjoining building.