Princess Beatrix, later Queen Beatrix of the Netherlands with her fiance Claus van Amsberg, during a formal banquet at the Prinsenhof in Delft, Netherlands, 6th March 1966. (Photo by Keystone/Hulton Archive/Getty Images)
Princess Beatrix, later Queen Beatrix of the Netherlands with her fiance Claus van Amsberg, during a formal banquet at the Prinsenhof in Delft, Netherlands, 6th March 1966. (Photo by Keystone/Hulton Archive/Getty Images)