MADRID, SPAIN - JUNE 12:  Princess Letizia of Spain receives Crown Prince Naruhito of Japan for a Gala Dinner at the Royal Palace during the third day of his visit to Spain on June 12, 2013 in Madrid, Spain. Japanese Crown Prince Naruhito is on a six-day official visit to Spain to mark the 400th anniversary of bilateral ties between the nations.  (Photo by Carlos Alvarez/Getty Images)