ZWOLLE, NETHERLANDS - APRIL 27: (L-R) Princess Catharina-Amalia; Princess Alexia; Princess Ariane; Queen Maxima and King Willem-Alexander of The Netherlands are served a sausage and soup during celebrations marking the 49th birthday of the King on King's Day on April 27, 2016 in Zwolle, Netherlands. (Photo by Michel Porro/Getty Images)
