MAASTRICHT, NETHERLANDS - AUGUST 30: (L-R) Grand Duchess Maria Teresa of Luxembourg, Grand Duke Henri of Luxembourg, Queen Maxima of The Netherlands, King Willem-Alexander of The Netherlands, King Philippe of Belgium, Queen Mathilde of Belgium, Daniela Schadt and Federal President of Germany Joachim Gauck attend celebrations marking the 200th anniversary of the kingdom of The Netherlands on August 30, 2014 in Maastricht, The Netherlands. (Photo by Freek van den Bergh - Pool/Getty Images)