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WITTENBERG, GERMANY - FEBRUARY 09: King Willem-Alexander (L-R) and Queen Maxima of the Netherlands, mayour Torsten Zugehoer, Gabriele Haseloff, Reiner Haseloff, governor of Saxony-Anhalt, and Hanna Kasparick visit the castle church on February 9, 2017 in Wittenberg, 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)

WITTENBERG, GERMANY - FEBRUARY 09: King Willem-Alexander (L-R) and Queen Maxima of the Netherlands, mayour Torsten Zugehoer, Gabriele Haseloff, Reiner Haseloff, governor of Saxony-Anhalt, and Hanna Kasparick visit the castle church on February 9, 2017 in Wittenberg, 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)