Willem-Alexander Claus George Ferdinand, King of the Netherlands, Prince of Oranje-Nassau, Jonkheer van Amsberg (Utrecht, 27 April 1967) has been King of the Netherlands since 30 April 2013. He is the oldest child from the marriage of Beatrix, Princess of the Netherlands, and Claus, Prince of the Netherlands, Jonkheer van Amsberg. His nickname is Alex (other).