1909
A.J. Finberg, A Complete Inventory of the Drawings of the Turner Bequest, London 1909, vol.I, p.545, as ‘A renaissance gateway. (?Porta Capuana)’.
1984
Cecilia Powell, ‘Turner on Classic Ground: His Visits to Central and Southern Italy and Related Paintings and Drawings’, unpublished Ph.D thesis, Courtauld Institute of Art, University of London 1984, pp.180 note 42, 424, as ‘Castelnuovo, Naples, and the Arco del Trionfo’.
1987
Cecilia Powell, Turner in the South: Rome, Naples, Florence, New Haven and London 1987, p.79 note 35, reproduced pl.79, as ‘Castelnuovo and the Arco del Trionfo, Naples’.