Japanese Crown Prince Naruhito (L) is greeted by his wife Crown Princess Masako (R) and their daughter Princess Aiko at the Crown Prince's Residence in Tokyo on June 25, 2011.

 Crown Prince Naruhito returned to Japan from Berlin the same day after completing his four-day official trip to Germany.

Japan's Crown Princess Masako (C), accompanied by Prince Akishino (2nd R) and Princess Kiko (R), sees off her husband Crown Prince Naruhito (L) as Naruhito leaves for Germany, at their residence at Togu Palace in Tokyo June 21, 2011.

Japan's Crown Prince Naruhito (L) talks to his wife Crown Princess Masako as he bids farewell to her before leaving for Germany at their residence at Togu Palace in Tokyo June 21, 2011. Crown Prince Naruhito will visit Germany from June 21 for a four-day visit for the 150th anniversary of the Japan-Germany amity treaty.

Japanese Crown Prince Naruhito (L) and Crown Princess Masako (C) listen to Iwanuma city mayor Tsneaki Iguchi (R) while visiting the tsunami-devastated city of Iwanuma, Miyagi prefecture on June 4, 2011. Japan's March 11 earthquake and tsunami left thousands dead or missing and many more homeless.

Japan's Crown Prince Naruhito (L) and Crown Princess Masako (R) talk with evacuees from the March 11 earthquake and tsunami at a gymnasium, currently an evacuation center, inside Ajinomoto stadium in Chofu, western Tokyo April 6, 2011. The couple visited the evacuation center to encourage the evacuees, who are mainly from Fukushima prefecture.

Japan's Crown Prince and Princess will not be attending the wedding of Britain's Prince William and Kate Middleton, Jiji reported on March 18, 2011.

Japan's Crown Prince Naruhito and Crown Princess Masako will not attend the wedding of Prince William and Kate Middleton because of the earthquake and tsunami.

http://www.telegraph.co.uk/news/uknews/royal-wedding/8390657/Japan-earthquake-Japanese-royals-to-miss-Prince-Williams-wedding.html

Japanese Crown Prince Naruhito (R) and Crown Princess Masako (L) greet well-wishers gathered at the Imperial Palace in Tokyo on January 2, 2011 for the emperor's annual New Year's greetings.

In this picture released by the Imperial Household Agency on January 1, 2011, Crown Princess Masako, Crown Prince Naruhito, Emperor Akihito, Empress Michiko, Prince Akishino, Prince Hisahito, Princess Kiko (L-R in front row) and Princess Mako, Aiko and Kako (L-R in back row) pose for the annual official photo session for the new year at the Imperial Palace in Tokyo in this December 14, 2010 picture.

Japan's Emperor Akihito (C) appears with Empress Michiko (R), Crown Prince Naruhito (L) and Crown Princess Masako to well-wishers gathered to celebrate the monarch's 77th birthday at the Imperial Palace in Tokyo December 23, 2010.

Japan's Crown Princess Masako waves as she arrives at Imperial Palace in Tokyo Thursday, Dec. 9, 2010. Masako celebrated her 47th birthday Thursday.

In this photo taken on Thursday, Dec. 2, 2010 and released by the Imperial Household Agency of Japan, Crown Prince Naruhito, left, Crown Princess Masako, right, and their daughter Princess Aiko, holding her cat, pose with their dog Yuri during their photo session at their residence Togu Palace in Tokyo. Masako turns 47th birthday Thursday, Dec. 9, 2010.

Japanese Princess Aiko (C), daughter of Crown Prince Naruhito dances with fellow students at the Gakushuin elementary school for her school's athletic festival in Tokyo on October 11, 2010. Crown Prince Naruhito and Crown Princess Masako attended the festival.

Crown Prince Naruhito and Crown Princess Masako view a dance at a government culture festival in Tokyo on Oct. 1, 2010. It was the first official outing since January for the princess who has been undergoing treatment for stress-induced illness.

Crown Prince Naruhito, Princess Masako and Princess Aiko at Izukyu Shimoda station

Japanese Crown Prince Naruhito (L), his wife Crown Princess Masako (R) and their daughter Princess Aiko (C) are welcomed by well-wishers upon their arrival at Izukyu Shimoda station in Shimoda, central Japan, August 4, 2010. The three will spend their summer holidays at the Suzaki Imperial Villa located in the city.