LONDON, UNITED KINGDOM - JULY 27: Fiancees Prince Charles And Lady Diana Spencer At St Paul's Cathedral For A Wedding Rehearsal During Their Engagement (Photo by Tim Graham Photo Library via Getty Images)
LONDON, UNITED KINGDOM - JULY 27: Fiancees Prince Charles And Lady Diana Spencer At St Paul's Cathedral For A Wedding Rehearsal During Their Engagement (Photo by Tim Graham Photo Library via Getty Images)