Sir Francis Cook, 1st Baronet, 1st Viscount Monserrate (23 January 1817 – 17 February 1901) was a British merchant and art collector.

[2] In 1833, he entered his father's firm Cook, Son & Co. based in the City of London, which traded finished wool, cotton, linen and silk, after travels in Europe and the Near East.

He collected his first major paintings in 1868, at which date Sir John Charles Robinson (1824–1913), former Victoria and Albert Museum curator, became his advisor.

This painting, bought by Francis Cook in 1900, was sold in June 1958 by Sotheby's for only £45 since the family was of the belief that the artist was Giovanni Antonio Boltraffio, a contemporary and studio mate of Leonardo.

On 1 October 1885, he married for the second time to the American feminist stockbroker, and former clairvoyant, Tennessee Celeste Claflin (1844–1923).