AMSTERDAM, NETHERLANDS - APRIL 30:  Queen Beatrix of the Netherlands (L) signs her name to the Act of Abdication as her son Prince Willem-Alexander of the Netherlands and his wife Princess Maxima of the Netherlands (R) watches during the abdication ceremony in the Moseszaal at the Royal Palace on April 30, 2013 in Amsterdam. Queen Beatrix of the Netherlands is abdicating the throne after a 33 year reign and hands the throne to her son Prince Willem-Alexander who will be sworn in later at the Nieuwe Kerk ahead of a joint session of parliament. (Photo by Bart Maat - Pool/Getty Images)