Portrait of the Count-Duke of Olivares (São Paulo) Tags: Artwork.The Portrait of the Count-Duke of Olivares is a 1624 portrait by Diego Velázquez (Seville June 6 1599 – Madrid August 6 1660) the most celebrated painter of the Spanish Golden Age. It is housed in the São Paulo Museum of Art in São Paulo Brazil. thumbnail author Diego Velázquez Learn more... Loading...