LELYSTAD, NETHERLANDS - NOVEMBER 15: King Willem-Alexander of The Netherlands attends the celebrations of the 50th anniversary of Lelystad city on November 15, 2017 in Lelystad, Netherlands. (Photo by Patrick van Katwijk/Getty Images)
LELYSTAD, NETHERLANDS - NOVEMBER 15: King Willem-Alexander of The Netherlands attends the celebrations of the 50th anniversary of Lelystad city on November 15, 2017 in Lelystad, Netherlands. (Photo by Patrick van Katwijk/Getty Images)