LONDON, UNITED KINGDOM - FEBRUARY 28: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge, Patron of the National Portrait Gallery, visits the 'Victorian Giants: The Birth of Art Photography' exhibition at the National Portrait Gallery on February 28, 2018 in London, England. The Duchess has written personal captions for some of the photographs, forming the gallery's first Patron's Trail and written a foreword to the exhibition catalogue. (Photo by Max Mumby/Indigo/Getty Images)
