TILBURG, NETHERLANDS - APRIL 27: King Willem-Alexander, Queen Maxima, Princess Amalia, Princess Alexia, Princess Ariane, Prince Constantijn, Princess Laurentien and Princess Marilene of The Netherlands attend the King's 50th birthday during the Kingsday celebrations on April 27, 2017 in Tilburg, Netherlands. (Photo by Patrick van Katwijk/Getty Images)
