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TOKYO, JAPAN - JUNE 7: In this photo provided by the Japanese Imperial Palace 01 June, Crown Prince Naruhito (L) and his bride, former diplomat Masako Owada (R) sit and talk at the couples new residence in the Akasaka Palace. The royal wedding will be held at the palace 09 June. (Photo credit should read IMPERIAL PALACE HAND-OUT/AFP via Getty Images)

TOKYO, JAPAN - JUNE 7:  In this photo provided by the Japanese Imperial Palace 01 June, Crown Prince Naruhito (L) and his bride, former diplomat Masako Owada (R) sit and talk at the couples new residence in the Akasaka Palace. The royal wedding will be held at the palace  09 June.  (Photo credit should read IMPERIAL PALACE HAND-OUT/AFP via Getty Images)

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JAPAN - JUNE 01: Masako Owada With Family And With Naruhito Few Days Before Her Wedding In Tokyo, Japan In June, 1993 - Naruhito and Masako Owada. (Photo by Kurita KAKU/Gamma-Rapho via Getty Images)

JAPAN - JUNE 01:  Masako Owada With Family And With Naruhito Few Days Before Her Wedding In Tokyo, Japan In June, 1993 - Naruhito and Masako Owada.  (Photo by Kurita KAKU/Gamma-Rapho via Getty Images)

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TOKYO - JUNE 9: (FILE PHOTO) In this handout photo from the Imperial Household Agency, Crown Prince Naruhito of Japan and his wife Crown Princess Masako bow to Emperor Akihito and Empress Michiko during a ceremony to greet them at their wedding at the Imperial Palace June 9, 1993 in Tokyo. Crown Prince Naruhito and Crown Princess Masako will mark their 11th wedding anniversary on June 9, 2004. (Photo by Imperial Household Agency/Getty Images)

TOKYO - JUNE 9:  (FILE PHOTO) In this handout photo from the Imperial Household Agency, Crown Prince Naruhito of Japan and his wife Crown Princess Masako bow to Emperor Akihito and Empress Michiko during a ceremony to greet them at their wedding at the Imperial Palace June 9, 1993 in Tokyo. Crown Prince Naruhito and Crown Princess Masako will mark their 11th wedding anniversary on June 9, 2004. (Photo by Imperial Household Agency/Getty Images)

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TOKYO, JAPAN: (FILES) This file photo dated 09 June 1993 shows Japanese Crown Prince Naruhito (L) and Crown Princess Masako (R) waving to people during the parade after their wedding ceremony in Tokyo. Japan's Crown Princess Masako, who on 30 July 2004 was diagnosed as suffering from a psychological disorder brought on by stress, used to be an outgoing career diplomat when she married into the world's oldest monachy in 1993, has since slowly faded from public view, last appearing at an official function in December, 2003. AFP PHOTO/JIJI PRESS/FILES (Photo credit should read AFP/AFP/Getty Images)

TOKYO, JAPAN:  (FILES) This file photo dated 09 June 1993 shows Japanese Crown Prince Naruhito (L) and Crown Princess Masako (R) waving to people during the parade after their wedding ceremony in Tokyo.  Japan's Crown Princess Masako, who on 30 July 2004 was diagnosed as suffering from a psychological disorder brought on by stress, used to be an outgoing career diplomat when she married into the world's oldest monachy in 1993, has since slowly faded from public view, last appearing at an official function in December, 2003.     AFP PHOTO/JIJI PRESS/FILES  (Photo credit should read AFP/AFP/Getty Images)

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TOKYO - JUNE 2: (FILE PHOTO) In this handout photo from the Imperial Household Agency, Crown Prince Naruhito of Japan and his future wife Masako Owada pose for photographs in traditional Japanese costume prior to their wedding June 2, 1993 in Tokyo. Crown Prince Naruhito and Crown Princess Masako will mark their 11th wedding anniversary on June 9, 2004. (Photo by Imperial Household Agency/Getty Images)

TOKYO - JUNE 2:  (FILE PHOTO) In this handout photo from the Imperial Household Agency, Crown Prince Naruhito of Japan and his future wife Masako Owada pose for photographs in traditional Japanese costume prior to their wedding June 2, 1993 in Tokyo. Crown Prince Naruhito and Crown Princess Masako will mark their 11th wedding anniversary on June 9, 2004. (Photo by Imperial Household Agency/Getty Images)