The Prince Of Wales & Duchess Of Cornwall Attend The Friends Of The National Libraries Reception [Getty Images]

LONDON, ENGLAND - FEBRUARY 24: Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall talk to Giles Mandelbrote Librarian and Archivist, Lambeth Palace Library as they attend a reception for the charity Friends of the National Libraries at Lambeth Palace Library on February 24, 2016 in London, England. (Photo by John Phillips/WPA Pool/Getty Images)

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