LUXEMBOURG, LUXEMBOURG - MAY 23: (L-R) Hereditary Grand Duke Guillaume of Luxembourg, Grand Duchess Maria Teresa of Luxembourg, King Willem-Alexander of The Netherlands, Queen Maxima of The Netherlands, Grand Duke Henri of Luxembourg and Hereditary Grand Duchess Stephanie of Luxembourg during the official picture at the state banquet in the Grand Ducal Palace on May 23, 2018 in Luxembourg, Luxembourg. The Dutch King and Queen are in Luxembourg for a three day state visit. (Photo by Patrick van Katwijk/Getty Images)