Meghan, Duchess of Sussex and Prince Harry, Duke of Sussex travel down The Mall in a horse drawn carriage during Trooping The Colour, the Queen’s annual birthday parade, on June 8, 2019 in London, England. The annual ceremony involving over 1400 guardsmen and cavalry, is believed to have first been performed during the reign of King Charles II. The parade marks the official birthday of the Sovereign, although the Queen’s actual birthday is on April 21st. (Photo by Max Mumby/Indigo/Getty Images)