ERFURT, GERMANY - FEBRUARY 08: Queen Maxima of the Netherlands waves on February 8, 2017 in Erfurt, Germany. The royal couple will pay a working visiting from February 7 to 10 to the German Bundeslaender Thuringia, Saxony and Saxony-Anhalt in order to deepen trade and investment relations and promote cooperation in high-tech systems, chemicals and flood protection sectors. (Photo by Jens Schlueter/Getty Images)
WEIMAR, GERMANY - FEBRUARY 08: King Willem-Alexander and Queen Maxima of the Netherlands visit the Buchenwald concentration camp on February 8, 2017 in Weimar, Germany. The Royal couple will pay a working visiting from February 7 to 10 to the German Bundeslaender Thuringia, Saxony and Saxony-Anhalt in order to deepen trade and investment relations and promote cooperation in high-tech systems, chemicals and flood protection sectors. (Photo by Franziska Krug/Getty Images)
ERFURT, GERMANY - FEBRUARY 08: King Willem-Alexander and Queen Maxima of the Netherlands visit the exhibition in the old synagogue on February 8, 2017 in Erfurt, Germany. The royal couple will pay a working visiting from February 7 to 10 to the German Bundeslaender Thuringia, Saxony and Saxony-Anhalt in order to deepen trade and investment relations and promote cooperation in high-tech systems, chemicals and flood protection sectors. (Photo by Jens Schlueter/Getty Images)
