EPSOM, UNITED KINGDOM - JUNE 02: Prince Charles With His Father, Prince Philip, Enjoying A Day Horse Racing At The Derby. (Photo by Tim Graham Photo Library via Getty Images)
WINDSOR, UNITED KINGDOM - JUNE 01: Prince Charles Talking With Prince Philip Before A Game Of Polo At Windsor (Photo by Tim Graham Photo Library via Getty Images)
ASCOT, ENGLAND - JUNE 20: Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall join Prince Andrew, Duke of York and Prince Philip, Duke of Edinburgh for the first day of Royal Ascot Races on June 20, 2006 in Berkshire, England. (Photo by Tim Graham Photo Library via Getty Images)
LONDON, UNITED KINGDOM - SEPTEMBER 06: The Duke Of Edinburgh, Prince William, Earl Spencer, Prince Harry And The Prince Of Wales Following The Coffin Of Diana, Princess Of Wales (Photo by Tim Graham Photo Library via Getty Images)
KEW, ENGLAND - APRIL 21: (NO PUBLICATION IN UK MEDIA FOR 28 DAYS) Queen Elizabeth II and Prince Philip the Duke of Edinburgh with Prince Charles, Prince William, Prince Harry and others watch a firework display at her 80th birthday dinner at Kew Palace on April 21, 2006 in Kew, Surrey. (Photo by POOL/ Tim Graham Picture Library/ Getty Images)
