On April 27, 2016, the Netherlands celebrated King Willem-Alexander's 49th birthday.
— Koninklijk Huis (@koninklijkhuis) April 27, 2016
King Willem-Alexander (second from right) and Queen Máxima (left) of the Netherlands with UN Secretary-General Ban Ki-moon and his wife, Yoo Soon-taek, before a dinner at Noordeinde Palace in The Hague on April 19, 2016. /
Queen Máxima of the Netherlands attends an elementary school lesson about money on March 14, 2016 in Vleuten, the Netherlands.
King Willem-Alexander (right) and Queen Máxima of the Netherlands (left) held a reception in honor of French president François Hollande (center) on March 11, 2016 in Paris, France.
King Willem-Alexander and Queen Máxima of the Netherlands visit Sprundel, Netherlands on February 16, 2016.
Left to right: Queen Máxima of the Netherlands, Belgium's King Philippe, King Willem-Alexander of the Netherlands, and Belgium's Queen Mathilde at a concert in Brussels, Belgium on January 22, 2016 marking the Dutch presidency of the Council of the European Union.
King Willem-Alexander and Queen Máxima of the Netherlands attend a New Year's reception for the diplomatic corps at the Royal Palace of Amsterdam on January 13, 2015.