1909
A.J. Finberg, A Complete Inventory of the Drawings of the Turner Bequest, London 1909, vol.I, p.539, as ‘Four sketches, one of “Frascati”, another of “Monte Dragone”, and a third of “Nocino”(?)’.
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Powell, ‘Turner on Classic Ground: His Visits to Central and Southern Italy and Related Paintings and Drawings’, unpublished Ph.D thesis, Courtauld Institute of Art, University of London 1984, pp.194 note 102, 423, as ‘Four sketches, one of “Frascati”, another of “Monte Dragone”, i.e. Villa Mondragone at Frascati’.
1987
Cecilia Powell, Turner in the South: Rome, Naples, Florence, New Haven and London 1987, p.[88] note 78.