AMSTERDAM, NETHERLANDS - MARCH 10: The newlyweds Princess Beatrix and Prince Claus waving at the crowd from the balcony of the Royal Palace on March 10, 1966 in Amsterdam, Netherlands. (Photo by Gamma-Keystone via Getty Images)
AMSTERDAM, NETHERLANDS - MARCH 10: The newlyweds Princess Beatrix and Prince Claus waving at the crowd from the balcony of the Royal Palace on March 10, 1966 in Amsterdam, Netherlands. (Photo by Gamma-Keystone via Getty Images)