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THE HAGUE, NETHERLANDS - SEPTEMBER 18: L-R: Prince Constantijn Of The Netherlands, Princess Laurentien Of The Netherlands, Prince Willem Alexander Of The Netherlands, Princess Maxima Of The Netherlands, Queen Beatrix Of The Netherlands, Princess Margriet Of The Netherlands and Pieter van Vollenhove Of The Netherlands wave from the Noordeinde Palace balcony during Prince's Day celebrations at The Hague on September 18, 2007 in The Hague, The Netherlands. (Photo by Michel Porro/Getty Images)