MADRID, SPAIN - MAY 29:  Princess Letizia of Spain attends a dinner hosted by King Juan Carlos I of Spain in honour of visiting President of Uruguay Jose Mujica (not pictured) at Zarzuela Palace on May 29, 2013 in Madrid, Spain. Uruguay's President Jose Mujica is visiting Spain as part of an official tour to China, Spain, Italy and Vatican.  (Photo by Alberto Martin - Pool/Getty Images)