A distinguished Scottish artist, born in Aberdeen, studied in Rome; settled for a time in Edinburgh, and finally removed to London; painted portraits at first, but soon took to higher subjects of art; his work was such as to commend itself to both German and French artists; he gave himself to fresco-painting, and as a fresco-painter was selected to adorn the walls of the Palace of Westminster and the House of Lords; his "Baptism of Ethelbert," in the latter, is considered his best work (1806-1864).