Watercolour, 18 x 22,5 cm, lo. ri. sign. a. dat. F. Catel 1834, on the reverse inscribed Burg Trimburg, min. foxing, framed under glass. - Main exponent of German-Roman landscape painting, worked initially in Paris, thereafter in Rome, where he was in close contact with the Nazarene movement, in 1818 he travelled Sicily with prince Galizin, member a. professor of the Berlin academy. - Mus.: Hamburg (Kunsthalle), München (Neue Pinakothek), Berlin, Hannover, Kopenhagen a. others. - Lit.: Boetticher, Thieme-Becker, Bénézit, exh. cat. "Der Landschafts- u. Genremaler F.L.C." (Rom, Casa di Goethe 2007) a. others.