Dutch King Willem-Alexander (L) and his wife Maxima (R) step to the Church in Amsterdam to swear in, on April 30, 2013. Following the abdication of Queen Beatrix, the new King of the Netherlands Willem-Alexander was officially inaugurated on Tuesday. (Xinhua/Rick Nederstigt)

Dutch King Willem-Alexander (L) and his wife Maxima (R) step to the Church in Amsterdam to swear in, on April 30, 2013. Following the abdication of Queen Beatrix, the new King of the Netherlands Willem-Alexander was officially inaugurated on Tuesday. (Xinhua/Rick Nederstigt)

Dutch King Willem-Alexander and his wife Maxima step to the Church in Amsterdam to swear in, on April 30, 2013. Following the abdication of Queen Beatrix, the new King of the Netherlands Willem-Alexander was officially inaugurated on Tuesday. (Xinhua/Rick Nederstigt)