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THE HAGUE, NETHERLANDS - SEPTEMBER 21: (L to R) Prince Constantijn, Princess Laurentien, Princess Maxima, Crown Prince Willem Alexander, Queen Beatrix, Princess Margriet and Pieter van Vollenhove wave from the balcony of the Noordeinde Palace during the traditional ceremony to mark the annual opening of parliament September 19, 2004 in The Hague, The Netherlands. (Photo by Michel Porro/Getty Images)

THE HAGUE, NETHERLANDS - SEPTEMBER 21:  (L to R) Prince Constantijn, Princess Laurentien, Princess Maxima, Crown Prince Willem Alexander, Queen Beatrix, Princess Margriet and Pieter van Vollenhove wave from the balcony of the Noordeinde Palace during the traditional ceremony to mark the annual opening of parliament September 19, 2004 in The Hague, The Netherlands. (Photo by Michel Porro/Getty Images)