Xavier Bray is Assistant Curator of Seventeenth and Eighteenth-Century Painting at the National Gallery, London. Alfonso Rodriguez G. de Ceballos was formerly Professor at the Universidad Autonoma, Madrid. Daphne Barbour is a Senior Objects Conservator; Eleonora Luciano is Associate Curator of Sculpture; and Judy Ozone is a Senior Objects Conservator, all at the National Gallery of Art, Washington D.C. Rocio Izquierdo Moreno is a curator; Maria del Valme Munoz Rubio is Chief Curator; and Ignacio Hermoso Romero is a curator, all at the Museo de Bellas Artes, Seville. Maria Fernanda Moron de Castro is Curator of Collections, University of Seville. Margorie Trusted is Senior Curator of Sculpture at the Victoria and Albert Museum, London.