Plan of Rome on 12 sheets, here originally assembled as a wall map. Nolli was an Italian architect and surveyor. He began surveying for his Rome map in 1736 and engraved it in 1748. The map was published in response to the commission of Pope Benedict XIV to survey Rome in order to help create demarcations for the 14 traditional rioni or districts. It was by far the most accurate description of Rome produced to date at the time. For decades it continued to be used as a base map for many of the maps of Rome that followed it. Stefano Pozzi engraved the views at the bottom of the map.