Dutch Royal Family Attend King's Day

ZWOLLE, NETHERLANDS - APRIL 27: Prince Maurits of The Netherlands, Crown Princess Catharina-Amalia of The Netherlands, Princess Alexia of The Netherlands, Princess Ariane of The Netherlands, Queen Maxima of The Netherlands, King Willem-Alexander of The Netherlands, Pieter van Vollenhoven and Prince Constantijn of The Netherlands watch a performance during King's Day (Koningsdag), the celebration of the birthday of the Dutch King, on April 27, 2016 in Zwolle, Netherlands. Parties and concerts are held across the Netherlands as members of the Dutch royal family oversee festivities. (Photo by Andreas Rentz/Getty Images)