LUXEMBOURG - MAY 11:  Catherine, Duchess of Cambridge (6th R) escorted by Prince Guillaume of Luxembourg (5th R), Princess Stephanie of Luxembourg (4th R) and Xavier Bettel, Prime Minister of Luxembourg (3rd R) during a one day visit to Luxembourg at Drai Eechelen Museum on May 11, 2017 in Luxembourg, Luxembourg.  (Photo by Jeff Spicer/Getty Images)