A.J. Finberg, A Complete Inventory of the Drawings of the Turner Bequest, London 1909, vol.I, p.527 as ‘Two sketches of a bust of “Paulus III.,” &c. No.122c, Second Loan Collection’.
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Powell, ‘Turner on Classic Ground: His Visits to Central and Southern Italy and Related Paintings and Drawings’, unpublished Ph.D thesis, Courtauld Institute of Art, University of London 1984, pp.116, 148, 235, 239, 410, reproduced pl.84, as ‘Two sketches of the bust of Raphael by Alessandro d’Este in the Vatican loggia (the inscriptions Paulus III, etc. are from above the doorways of the loggia)’.
Robert E. McVaugh, ‘Turner and Rome, Raphael and the Fornarina’, Studies in Romanticism, no.26, Autumn 1987, p.372.
Cecilia Powell, Turner in the South: Rome, Naples, Florence, New Haven and London 1987, pp.62, 117, reproduced pl.67, p.62, as ‘Sketches of the bust of Raphael by Alessandro d’Este (1787–1826), Vatican loggia, Rome’.
Ian Warrell, ‘R.N. Wornum and the First Three Loan Collections: A History of the Early Displays of the Turner Bequest Outside London’, Turner Studies, Summer 1991, vol.11, no.1, p.45, no.122c.
James Hamilton, Nicola Moorby, Christopher Baker and others, Turner e l’Italia, exhibition catalogue, Palazzo dei Diamanti, Ferrara 2008, pp.49 and 91 note 70.
James Hamilton, Nicola Moorby, Christopher Baker and others, Turner & Italy, exhibition catalogue, National Galleries of Scotland, Edinburgh 2009, pp.52, 151 note 70.
David Solkin (ed.), Turner and the Masters, exhibition catalogue, Tate Britain, London 2009, pp.226 note 36, 229 note 1 under no.63.
David Solkin and Guillaume Faroult (eds.), Turner et ses peintres, exhibition catalogue, Galeries nationales, Grand Palais, Paris 2010, pp.53, 60 note 35, 196, 262 note 12.
Nicola Moorby, ‘Turner’s Sketches for “Rome from the Vatican”: Some Recent Discoveries’, Turner Society News, no.115, Spring 2011, pp.5, 10 note 20.