GREAT BRITAIN - JULY 29: Diana, Princess of Wales and Prince Charles, Prince of Wales on their wedding day at St Paul's Cathedral, Sarah Armstrong-Jones is the bridesmaid behind them (Photo by Tim Graham Photo Library via Getty Images)
GREAT BRITAIN - JULY 29: Diana, Princess of Wales and Prince Charles, Prince of Wales on their wedding day at St Paul's Cathedral, Sarah Armstrong-Jones is the bridesmaid behind them (Photo by Tim Graham Photo Library via Getty Images)