Keywords: Louis Guéymard as Robert le Diable by Gustave Courbet - The Metropolitan Museum of Art 436015.jpg Louis Guéymard in the title role of Giacomo Meyerbeer 's opera Robert le diable in the last scene of Act 1 in which Robert gambles with dice loses his entire estate and sings the aria L �or est une chimère Gold is but an illusion 1857 Oil on canvas Size inch 58 5 42 Institution Met Gallery 809 credit line Gift of Elizabeth Milbank Anderson 1919 accession number 19 84 http //www metmuseum org/collection/the-collection-online/search/436015 The Metropolitan Museum of Art PD-old-100 Louis Guéymard as Robert le Diable Courbet |