Japan's Crown Prince Naruhito (2nd from R), French President Emmanuel Macron (L) and his wife Brigitte Macron are welcomed at Palace of Versailles near Paris, France on Sep.12, 2018. Prince Naruhito is making 9 days official visit to France. The French government invited Prince to mark the 160th anniversary of the Treaty of Amity and Commerce between France and Japan. The Emperor's abdication will be on April 30, 2019, and his eldest son, Crown Prince Naruhito's succession to the throne the following day May 1st, in 2019.( The Yomiuri Shimbun via AP Images )