Queen Beatrix, Prince of Orange Willem-Alexander, Princess Máxima of the Netherlands,  Princess Margriet of the Netherlands and Prof. Pieter van Vollenhoven arrive on OCtober 6, 2011 at the gala performance of dance company Introdans VIER40 to mark the 40th anniversary of Introdans Schouwburg Arnhem. AFP PHOTO/ ROBERT VOS ROYAL IMAGES netherlands out - belgium out (Photo credit should read ROBERT VOS/AFP/Getty Images)