TOPSHOT - (L-R) Britain's Prince William, Duke of Cambridge holding Prince Louis, Prince George, Princess Charlotte, Britain's Catherine, Duchess of Cambridge, Britain's Camilla, Duchess of Cornwall, Vice Admiral Timothy Laurence, Britain's Prince Charles, Prince of Wales, Britain's Princess Beatrice of York, Britain's Princess Anne, Princess Royal,, Britain's Queen Elizabeth II, Britain's Princess Eugenie of York, Britain's Lady Louise Windsor, Britain's Prince Andrew, Duke of York,, Britain's Prince Harry, Duke of Sussex,, Britain's Meghan, Duchess of Sussex, James, Viscount Severn and Isla Phillips stand with other members of the Royal Family on the balcony of Buckingham Palace to watch a fly-past of aircraft by the Royal Air Force, in London on June 8, 2019. - The ceremony of Trooping the Colour is believed to have first been performed during the reign of King Charles II. Since 1748, the Trooping of the Colour has marked the official birthday of the British Sovereign. Over 1400 parading soldiers, almost 300 horses and 400 musicians take part in the event. (Photo by Daniel LEAL-OLIVAS / AFP)        (Photo credit should read DANIEL LEAL-OLIVAS/AFP/Getty Images)