Keywords: Carignano map (14th C.).jpg Giovanni da Carignano of Genoa Date variously assigned c 1300 1305 1306 1310 1327 but before 1333 It was undated but signed Presbiter Johannes Rector sancti Marci di portu Janue me fecit If the earlier dates are accepted before 1311 it may be the oldest known signed portolan chart This chart was long held by the Archivio di Stato in Florence Italy The Carignano chart was destroyed in 1943 in the course of a bombing Archvio di Stato di Firenze Florence Italy Giovanni da Carignano between 1300 1333 PD-old Cartographers from Italy Portolan charts made in the 14th century |