LUXEMBOURG, LUXEMBOURG - MAY 11:  Catherine, Duchess of Cambridge (2nd R) escorted by Xavier Bettel, Prime Minister of Luxembourg (L), tours a cycling themed festival and unveils a mural of British cyclist Tom Simpson and Luxembourgish cycling legend Charly Gaul created by British artist James Straffon (R) during a one day visit to Luxembourg at Place de Clairfontaine on May 11, 2017 in Luxembourg, Luxembourg.  (Photo by Jeff Spicer/Getty Images)