This sketch depicts the countryside on the northern outskirts of Rome with the meandering course of the River Tiber. Turner’s viewpoint looks up-river from the Fontana dell’Acqua Acetosa, a seventeenth-century fountain designed by Andrea Sacchi which still survives today. The tower visible on the left-hand side is possibly the Tor di Quinto, one of a number of towers built in this area of the Campagna by Leo IV (Pope, 847–855 AD) for the protection of the city.1 The panorama continues on the opposite sheet of the double-page spread, see folio 40 verso (D16225; Turner Bequest CLXXXVIII 39a). A similar view can be found on folio 40 (D16224; Turner Bequest CLXXXVIII 39).
Raymond Keaveney, Views of Rome from the Thomas Ashby Collection in the Vatican Library, exhibition catalogue, Smithsonian Institution, Washington 1988, p.232.