LONDON, ENGLAND - JULY 21: A member of Buckingham Palace staff poses inside a glass case containing Queen Elizabeth II's wedding dress during a photocall at Buckingham Palace on July 21, 2016 in London, England. The dress makes up part of a forthcoming exhibit 'Fashioning a Reign: 90 Years of Style from The Queen's Wardrobe' to coincide with the Summer Opening of Buckingham Palace. The exhibit includes outfits worn by the Queen from State events to family celebrations and runs until October 2, 2016.  (Photo by Dan Kitwood/Getty Images)