ANTON RAPHAEL MENGS (1728-1779) Lord Grey, 5th Earl of Stamford (c. 1760) Oil on canvas (96 x 74 cm) Dunham Massey Hall, England (To enlarge the picture, right-click on it and choose "Open in a new tab") As it is well known, Mengs and Batoni were the undisputed master-portraitists of their time. Every aristocratic British …