Ingres's The Dream of Ossian was especially painted for Napoleon's quarters in Rome. It may refer to a passage in Sul-Malla of Lumon: "By night came a dream to Ossian; formless stood the shadow of Trenmor. He seemed to strike the dim shield on Selma's streamy rock. I rose in my rattling steel: I knew that war was near..."
Jean Auguste Dominique Ingres (1780–1867), Ossian’s Dream (Le Songe d'Ossian), oil on canvas, 348 × 275 cm, 1813, Musée Ingres, Montauban; source: The Yorck Project: 10.000 Meisterwerke der Malerei, DVD-ROM, 2002, ISBN 3936122202, Distributed by DIRECTMEDIA Publishing GmbH, Via Wikimedia Commons, http://commons.wikimedia.org/wiki/File:Jean_Auguste_Dominique_Ingres_009.jpg, Public Domain.