Dutch King William Alexander and Queen Maxima greet guests in the Royal Palace before a festive dinner with 150 Dutchmen of fifty-years-old who were invited on the occasion of the 50th birthday of the king on April 28, 2017 at the royal palace in Amsterdam. / AFP PHOTO / ANP / Remko de Waal / Netherlands OUT (Photo credit should read REMKO DE WAAL/AFP/Getty Images)
Dutch King William Alexander and Queen Maxima their glasses during a dinner with 150 Dutchmen of fifty-years-old who were invited on the occasion to mark the 50th birthday of the king on April 28, 2017 at the Royal Palace in Amsterdam. / AFP PHOTO / ANP / Remko de Waal / Netherlands OUT (Photo credit should read REMKO DE WAAL/AFP/Getty Images)
AMSTERDAM, NETHERLANDS - APRIL 28: King Willem-Alexander and Queen Maxima of The Netherlands host a dinner for 150 Dutch people to celebrate his 50th birthday in the Royal Palace on April 28, 2017 in Amsterdam, Netherlands. After the dinner the King and the Queen will open the Royal Palace for 50 hours with an exhibition that gives an overview of the Netherlands in the last 50 years. (Photo by Patrick van Katwijk/Getty Images)
AMSTERDAM, NETHERLANDS - APRIL 28: King Willem-Alexander and Queen Maxima of The Netherlands host a dinner for 150 Dutch people to celebrate his 50th birthday in the Royal Palace on April 28, 2017 in Amsterdam, Netherlands. After the dinner the King and the Queen will open the Royal Palace for 50 hours with an exhibition that gives an overview of the Netherlands in the last 50 years. (Photo by Patrick van Katwijk/Getty Images)
AMSTERDAM, NETHERLANDS - APRIL 28: Queen Maxima of The Netherlands smiles during a dinner for 150 Dutch people to celebrate King Willem-Alexander of the Netherlands' 50th birthday in the Royal Palace on April 28, 2017 in Amsterdam, Netherlands. After the dinner the King and the Queen will open the Royal Palace for 50 hours with an exhibition that gives an overview of the Netherlands in the last 50 years. (Photo by Patrick van Katwijk/Getty Images)
