PARIS, FRANCE - OCTOBER 31: Queen Letizia of Spain attends the 2016 World Cancer Congress Delegate Services at Palais des Congres on October 31, 2016 in Paris, France. (Photo by Stephane Cardinale - Corbis/Corbis via Getty Images)
PARIS, FRANCE - OCTOBER 31: Queen Letizia of Spain attends the 2016 World Cancer Congress Delegate Services at Palais des Congres on October 31, 2016 in Paris, France. (Photo by Stephane Cardinale - Corbis/Corbis via Getty Images)