WASHINGTON (AP).- An exhibition at the National Gallery of Art will showcase its rich holdings of works on paper by the Italian baroque master Giovanni Benedetto Castiglione (1609–1664), as well as works by his contemporaries and followers. On view in the Gallery’s West Building from January 29 to July 8, 2012, The Baroque Genius of Giovanni Benedetto Castiglione suggests, for the first time, the complex sources of his style such as Rembrandt van Rijn and Claude Lorrain, as well as its importance for later artists, from Giambattista Piranesi and the Tiepolo family to Antoine Watteau and François Boucher. The exhibition includes approximately 80 works, most from the Gallery’s collection; many