Princess Beatrix of the Netherlands with her fiance Claus van Amsberg on the occasion of their engagement announcement at Soestdijk Palace in Baarn near Amersfoort on 1st June 1965. (Photo by Ray Bellisario/Popperfoto via Getty Images/Getty Images)
Crown Princess Beatrix of the Netherlands (now Queen) and Claus von Amsberg (1926 - 2002) at the Royal Palace before their wedding, Amsterdam, 10th March 1966. (Photo by Keystone/Hulton Archive/Getty Images)
NETHERLANDS - MAY 13: Princess BEATRIX of Holland and Prince CLAUS posing with their first child Prince WILLEM-ALEXANDER. (Photo by Keystone-France/Gamma-Keystone via Getty Images)
NETHERLANDS - OCTOBER 20: The Dutch royal family. From left to right : Princess BEATRIX of Holland holding little Prince JOHAN FRISO, Prince WILLEM-ALEXANDER and Prince VON CLAUS. (Photo by Keystone-France/Gamma-Keystone via Getty Images)
NETHERLANDS - FEBRUARY 21: From left to right : Prince WILLEM-ALEXANDER, Prince CLAUS holding Prince JOHAN FRISO in her arms and Princess BEATRIX of Holland with Prince CONSTANTIJN (who had just been baptized) in her arms. (Photo by Keystone-France/Gamma-Keystone via Getty Images)
