on behalf of the Kunsthistorisches Museum, Vienna, and the Städel Museum, Frankfurt am Main, edited by Gerlinde Gruber, Sabine Haag, Stefan Weppelmann and Jochen Sander ; translation from German to English, Michael Scuffil, Josephine Cordero-Sapien
organiza, Biblioteca Nacional de España ; textos, Isabel Boega Vega, Concha Huidobro Salas, Ana Ma. Sanjurjo de la Fuente, Elena Ma. Santiago Páez, Ma. Ángeles Santos Almendros