A critical account of the drawings by Michel Angelo and Raffaello in the University Galleries, Oxford (1870)
Robinson, J. C · Oxford : Clarendon Press · leaf 349
akable; at the bottom of the drawing, however, is written in an ancient hand : ' Gio Sanzio da Urbino,' and 'Ritratto del duca d'Urbino*.' * At a later period, however, perhaps early in the eighteenth century, some other possessor of the drawing has scored through the attribution to Giovanni… … 7;
