ANTON RAPHAEL MENGS (1728-1779) John Brudenell-Montague, later Marquess of Monthermer (1758) Oil on canvas (244 x 171 cm) The Duke of Buccleuch (To enlarge the image, right-click on it and choose "Open in a new tab") John Lord Brudenell (1735-1770), who wore the title of Marquess of Monthermer from 1766, was the only son of …