Du Roy de Prusse – Duche de Lithuanie., 178018th century, 9 decade, Map of Lithuania/Poland description Du Roy de Prusse - Duche de Lithuanie 1780 Jean-Baptiste-Louis Clouet (mapmaker): “Du Roy de Prusse – Duche de Lithuanie,” Paris, sheet 58 x 40 cm, from his school atlas “Géographie moderne.” Compare with versions from 1787 and 1791 editions. Year 1780 Author Jean-BaptisteLouis Clouet Sources –