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THE HAGUE, NETHERLANDS - SEPTEMBER 17: King Willem-Alexander of The Netherlands, Queen Maxima of The Netherlands, Prince Constantijn of The Netherlands and Princess Laurentien of The Netherlands during Prinsjesdag the opening of the parliamentary year on September 17, 2019 in The Hague, Netherlands. (Photo by Patrick van Katwijk/Getty Images)

THE HAGUE, NETHERLANDS - SEPTEMBER 17: King Willem-Alexander of The Netherlands, Queen Maxima of The Netherlands, Prince Constantijn of The Netherlands and Princess Laurentien of The Netherlands during Prinsjesdag the opening of the parliamentary year on September 17, 2019 in The Hague, Netherlands. (Photo by Patrick van Katwijk/Getty Images)