Literature
Collection catalogues
Christopher Baker and Tom Henry,
The National Gallery complete illustrated catalogue, London, 2001, p. 374
Literature
Jill Dunkerton, Susan Foister, and Nicholas Penny,
Dürer to Veronese, New Haven, Conn.; London, 1999, fig. 317
Charles Robertson, Leonardo da Vinci, London in Burlington Magazine, 1307, 2012 pp. 132-133, fig. 44