Piers Baker-Bates is a Visiting Research Associate at the Open University. He has published extensively on Sebastiano del Piombo and the cultural relations between Italy and Spain in the sixteenth century, including his monographic study Sebastiano del Piombo and the World of Spanish Rome. Irene Brooke is an Associate Lecturer at the Courtauld. Her research focuses on the art and culture of Renaissance Venice. She has published several articles on the Venetian cardinal, Pietro Bembo, and on the engraver, Giulio Campagnola. She recently edited a volume on portraits of Renaissance cardinals published by AUP.