Dr. Henry Franz Pulitzer (1899–1979) was an Austrian-born gallery owner and "avid art collector",[1][2] and connoisseur, described by one source as a "media mogul".

[6][7][8][9] In 1936, he attended a display at the Leicester Galleries, at which he first saw the painting known as the Isleworth Mona Lisa, then owned by English art collector Hugh Blaker, with Pulitzer later describing that as the point at which he had "fallen in love with it".

A 1953 Advertiser's Weekly article noted that "Pulitzer Studios of Kensington are the other 'all colour' firm" in the advertising field",[11] and described a "teaming-up of Eugene Vernier, the outstanding French fashion photographer, with Dr. Henry F. Pulitzer, who, in recent years, has done much technical development work in colour and other fields".

[17] By February 1963, Pulitzer recounted making a trip to Phoenix, Arizona "intending to stay for three days" before leaving for California, but instead staying for three months out of fascination with the artwork that had been collected locally, noting for example "a magnificent terracotta by Andrea della Robbia, covering a whole wall specially built to house it" some miles from Scottsdale.

[19]In 1979, Ronald Hambleton acknowledged Pulitzer for providing details about a painting by Hieronymus Bosch previously incorrectly attributed to Herri met de Bles.

Blaker and his father-in-law John R. Eyre had previously asserted that the work was painted by Leonardo da Vinci, and had gained some support for this claim through examination by experts including Paul George Konody,[23] Archibald Cecil Chappelow,[24] Arduino Colasanti,[25] and Adolfo Venturi.

[30] In his later years, Pulitzer was described as living "in a fortress-like flat, guarded by a plethora of electronic devices, in Kensington High Street".