LONDON, UNITED KINGDOM - MAY 16: The King of Belgium Baudouin and Queen Elizabeth in London during official visit on May 16, 1963 in London, United Kingdom. (Photo by Keystone-France/Gamma-Keystone via Getty Images)
LONDON, UNITED KINGDOM - MAY 16: The King of Belgium Baudouin and Queen Elizabeth in London during official visit on May 16, 1963 in London, United Kingdom. (Photo by Keystone-France/Gamma-Keystone via Getty Images)