It was a celebration fit for a king! King Willem-Alexander of the Netherlands celebrated King's Day on April 27 alongside members of the Dutch royal family. For his 49th birthday festivities, the monarch was joined by his wife Queen Maxima and three daughters (Princess Ariane, Alexia and Crown Princess Catharina-Amalia).
Princess Alexia (L), Princess Catharina Amalia and Princess Ariane (R) of the Netherlands depart the Nieuwe Kerk to return to the Royal Palace after the abdication of Queen Beatrix and the Inauguration of King Willem Alexander of the Netherlands
Spain's King Felipe, background right, his wife Queen Letizia, front left, Argentina's President Mauricio Macri, background left, and his wife Juliana Awada, front right, leave the throne room before a gala dinner at the Royal Palace, in Madrid
Princess Maxima of the Netherlands attends concert with family
King Felipe VI of Spain (2R) and Queen Letizia of Spain (L) receive Argentina's President Mauricio Macri (2L) and wife Juliana Awada (R) for an Gala Dinner at the Royal Palace on February 22, 2017 in Madrid, Spain.