Paul Ganz, among other scholars, attributed this miniature to Holbein, but that was later discounted by Roy Strong and John Rowlands, and the work has not been accepted in recent scholarly studies as by Holbein or included in recent exhibitions of Holbein's work such as Holbein in England, Tate Britain, 2006. In 1969, Strong wrote: "This is no longer acceptable as Holbein's work and in x-ray the costume beneath seems slightly later in date [than the inscription which gives Edward's age as six, as he was in 1543] approximating to the dress in the rest of the versions which is circa 1546". Instead the portrait is thought possibly to derive from a pattern of William Scrots, who produced an anomorphic version of it (Image:Anamorphic portrait of Edward VI by William Scrots.jpg). (References: Roy Strong, Tudor and Jacobean Portraits, London: HMSO, 1969, pp. 92–93; John Rowlands, Hans Holbein: The Paintings of Hans Holbein the Younger, Complete Edition, Boston: David R. Godine, 1985, pp. 235–36; Paul Ganz, The Paintings of Hans Holbein: First Complete Edition, London: Phaidon, 1956, pp. 256–57; Susan Foister, Holbein in England, London: Tate Publishing, 2006.)