AMSTERDAM, NETHERLANDS - APRIL 30:  King Willem Alexander and Queen Maxima are seen aboard the King?s boat for the water pageant to celebrate the inauguration of King Willem of the Netherlands after the abdication of his mother Queen Beatrix of the Netherlands on April 30, 2013 in Amsterdam, Netherlands.  (Photo by Chris Jackson/WireImage)
AMSTERDAM, NETHERLANDS - APRIL 30:  King Willem Alexander and Queen Maxima of the Netherlands wave to the fans aboard the King's boat for the water pageant to celebrate the inauguration of King Willem of the Netherlands after the abdication of his mother Queen Beatrix of the Netherlands on April 30, 2013 in Amsterdam, Netherlands.  (Photo by Dean Mouhtaropoulos/Getty Images)
AMSTERDAM, NETHERLANDS - APRIL 30:  King Willem Alexander (R) and Queen Maxima (C) of The Netherlands with daughters Princess Alexia and Princess Catharina-Amalia are seen aboard the King’s boat for the water pageant to celebrate the inauguration of King Willem Alexander of the Netherlands after the abdication of his mother Queen Beatrix of the Netherlands on April 30, 2013 in Amsterdam, Netherlands.  (Photo by Andreas Rentz/Getty Images)
AMSTERDAM, NETHERLANDS - APRIL 30:  King Willem Alexander and Queen Maxima are seen aboard the King’s boat for the water pageant to celebrate the inauguration of King Willem of the Netherlands after the abdication of his mother Queen Beatrix of the Netherlands on April 30, 2013 in Amsterdam, Netherlands.  (Photo by Chris Jackson/WireImage)