Diana, Princess of Wales (1961 - 1997) at a Cartier polo match at Smith's Lawn at the Guards Polo Club in Windsor, UK, July 1897. (Photo by Terry Fincher/Princess Diana Archive/Getty Images)
Diana, Princess of Wales (1961 - 1997) at a Cartier polo match at Smith's Lawn at the Guards Polo Club in Windsor, UK, July 1897. (Photo by Terry Fincher/Princess Diana Archive/Getty Images)