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