King Willem-Alexander, his wife Queen Maxima and their daughters Crown Princess Catharina-Amalia, Princess Alexia and Princess Ariane, Prince Constantijn and Princess Laurentien attend the Kings Day 2017 celebration in Tilburg, The Netherlands, 27 April 2017. King's Day or Koningsdag is a national holiday in the Kingdom of the Netherlands. Celebrated on 27 April, the date marks the birth of King Willem. |