AMSTERDAM, THE NETHERLANDS - 28 NOVEMBER : King Willem-Alexander and Queen Maxima of the Netherlands welcome King Philippe and Queen Mathilde during an official welcome ceremony at the Dam Square in the front of the Royal Palace at the start of the three-day state visit on 28 November 2016 in Amsterdam, The Netherlands. (Photo by Patrick van Katwijk/Getty Images)
AMSTERDAM, THE NETHERLANDS - 28 NOVEMBER : King Willem-Alexander and Queen Maxima of the Netherlands welcome King Philippe and Queen Mathilde during an official welcome ceremony at the Dam Square in the front of the Royal Palace at the start of the three-day state visit on 28 November 2016 in Amsterdam, The Netherlands. (Photo by Patrick van Katwijk/Getty Images)
AMSTERDAM, THE NETHERLANDS - NOVEMBER 28: King Philippe and Queen Mathilde of Belgium and King Willem-Alexander and Queen Maxima of The Netherlands attend the signing of the treaty Boundary Correction by Belgian and Dutch foreign Ministers Reynders and Koenders at the Royal Palace on November 28, 2016 in Amsterdam, Netherlands. (Photo by Patrick van Katwijk/Getty Images)
AMSTERDAM, NETHERLANDS - NOVEMBER 28: Queen Maxima (R) of the Netherlands and Queen Mathilde (L) of Belgium are seen during an official welcome ceremony at the Dam Square in the front of the Royal Palace at the start of the three-day state visit on 28 November 2016 in Amsterdam, Netherlands. (Photo by Stringer/Anadolu Agency/Getty Images)
AMSTERDAM, NETHERLANDS - NOVEMBER 28: Queen Maxima (R) of the Netherlands and Queen Mathilde (L) of Belgium are seen during an official welcome ceremony at the Dam Square in the front of the Royal Palace at the start of the three-day state visit on 28 November 2016 in Amsterdam, Netherlands. (Photo by Stringer/Anadolu Agency/Getty Images)
