Britain's Catherine, Duchess of Cambridge, visits the "Vogue 100: A Century of Style" exhibition at the National Portrait Gallery in central London on May 4, 2016.
Forming part of the magazines centenary celebrations, Vogue 100: A Century of Style showcases the range of photography that has been commissioned by British Vogue since it was founded in 1916. / AFP / POOL / Ian Gavan        (Photo credit should read IAN GAVAN/AFP/Getty Images)