G[eorge]. C. Williamson. Catalogue of the Collection of Miniatures, the Property of J. Pierpont Morgan. Vol. 1, [deluxe edition]. London, 1906, pp. 7–8, no. 3, pl. III, no. 1, colorpl. 3, attributes it to Holbein; states that it came from a collection in Basel, and "at the sale was stated to have been in the possession of the descendants of the man depicted in it since the time of Holbein"; identifies the sitter as Arnold Franz, stating that "the family who owned the miniature is said to have preserved for a long time a letter from Holbein to Franz in which this very portrait is mentioned, but this important document appears to have been lost".
William Bode. "More Spurious Pictures Abroad Than in America." New York Times (December 31, 1911), p. SM4.
Edward Grosvenor Paine. Inventory of the miniatures in the Fredrick collection. 1960, pp. 17–18, no. 135, as by Holbein.
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. 71–72, no. 7, colorpl. 7 and ill. p. 71, state that it was "probably produced in the seventeenth or early eighteenth century with the intention of it being passed off as a work by Hans Holbein the Younger"; call Williamson's account of its provenance [see Ref. 1906] unconvincing.