Johann Joachim Winckelmann (1717?1768), ca. 1777, Oil on canvas, 25 x 19 3/8 in. (63. 5 x 49. 2 cm), Paintings, Anton Raphael Mengs (German, ?sti nad Labem (Aussig) 1728?1779 Rome), One of the most influential writers on art and archaeology?his History of Ancient Art was published in German in 1764?Johann Joachim Winckelmann was also a close friend and admirer of Mengs. Both were leading exponents of the nascent Neoclassical movement in Rome