Austrian painter, active mainly in Rome, where he settled in 1795. He was influenced by Carstens and worked with the Nazarenes on the decorations of the Casino Massimo (1825-29) in Rome, choosing Dante's Inferno for his subject, but is now best known for his landscapes. They were directly descended from the heroic and ideal landscape of Poussin, but have a distinctive Romantic flavour, particularly in his paintings of mountains. //