LUEBECK, GERMANY - MARCH 19: Queen Maxima and King Willem-Alexander of the Netherlands visit the Thuenen institute during their state visit on March 19, 2015 in Westerau, Germany. (Photo by Joern Pollex/Getty Images)
LUEBECK, GERMANY - MARCH 19: Queen Maxima and King Willem-Alexander of the Netherlands visit the Thuenen institute during their state visit on March 19, 2015 in Westerau, Germany. (Photo by Joern Pollex/Getty Images)