^A. Brejon de Lavergnée and D. Thiébaut,Catalogue sommaire illustré des peintures du musée du Louvre (1981:193).
^Luke Syson and Larry Keith, Leonado Da Vinci: Painter at the Court of Milan, Exhibition Catalogue (National Gallery, London, 2011)
^Luke Syson and Larry Keith, Leonado Da Vinci: Painter at the Court of Milan, Exhibition Catalogue, National Gallery (London, 2011)
^"Controversial painting 'La Belle Ferronniere', once thought to be a da Vinci, sells for $1.5M" . New York Daily News. Reuters. January 29, 2010.
^Berenson, Italian Pictures of the Renaissance: Central Italian and North Italian Schools (1968:48).
^Herbert Cook, "Some Notes on the Early Milanese Painters Butinone and Zenale. Part III (Conclusion)-Zenale as a Portrait Painter" The Burlington Magazine for Connoisseurs5 No. 14 (May 1904:199-2090 p. 201f.
^Its earliest secure appearance was its purchase in 1847 by Antoine Vincent, from the collection of the comte de Betz, as from General Louis Tourton. (Brewer).
^"The most sensational art trial of the early twentieth century", according to John Brewer, "Art and Science: A Da Vinci Detective Story", （頁面存檔備份，存於網際網路檔案館） Engineering and Science, No. 1/2 (2005); Brewer's The American Leonardo: A Tale of Obsession, Art and Money (New York: Oxford UP, 2009) is the definitive account of the Hahns' unsuccessful marketing of their painting.
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