Rank #48
King Willem-Alexander of the Netherlands
King Willem-Alexander is the reigning monarch of the Netherlands. He ascended to the throne in 2013 upon the abdication of his mother, Queen Beatrix. Willem-Alexander is the first male Dutch monarch since 1890 and is the oldest child of Queen Beatrix and Prince Claus.
From Wikipedia
Willem-Alexander is the King of the Netherlands and has reigned since 30 April 2013.