G[eorge]. C. Williamson. "Mr. J. Pierpont Morgan's Pictures: The Early Miniatures, I." Connoisseur 16 (December 1906), p. 207, no. XII, ill. p. 205, identifies the sitter as Gabrielle d'Estrées.
G[eorge]. C. Williamson. Catalogue of the Collection of Miniatures, the Property of J. Pierpont Morgan. 1, [deluxe edition]. London, 1906, p. 33, no. 25, pl. XVI, no. 1, attributes it to Hilliard; rejects the identification of the sitter as Queen Elizabeth; calls her French and states that Hilliard probably painted her during his residence in France; tentatively identifies her as Catherine Charlotte de La Trémoille, princesse de Condé, relating the work to three drawings depicting that sitter.
Harry B. Wehle. "Four Famous Miniatures." Metropolitan Museum of Art Bulletin 30 (October 1935), pp. 187–88, ill. on cover, supports the identification of the sitter as the princesse de Condé.
Graham Reynolds. Nicholas Hilliard and Isaac Oliver. Exh. cat., Victoria and Albert Museum. London, 1947, p. 32, no. 65, doubts the identification of the sitter as the princesse de Condé.
Erna Auerbach. Nicholas Hilliard. London, 1961, pp. 133, 305, no. 103, pl. 103, states that the sitter's identity cannot be established.
Graham Reynolds. Nicholas Hilliard & Isaac Oliver. 2nd ed. London, 1971, unpaginated, no. 65, ill.
Graham Reynolds with the assistance of Katharine Baetjer. European Miniatures in The Metropolitan Museum of Art. Exh. cat., The Metropolitan Museum of Art. New York, 1996, pp. 10–12, 72–73, no. 9, colorpl. 9 and ill. p. 73, call it a portrait of an unidentified lady of the Elizabethan court.
Katharine Baetjer. "British Portraits in The Metropolitan Museum of Art." Metropolitan Museum of Art Bulletin 57 (Summer 1999), p. 8, ill. (color).