Princess Yōko of Mikasa

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Born (1983-10-25) 25 October 1983 (age 32)
Tokyo, Japan
Full name
Yōko (瑶子?)
House Imperial House of Japan
Father Prince Tomohito of Mikasa
Mother Princess Tomohito of Mikasa
Religion Shinto
Japanese Imperial Family
Imperial Seal of Japan.svg

HIH The Prince Mikasa
HIH The Princess Mikasa

Princess Yōko of Mikasa (瑶子女王 Yōko Joō?, born 25 October 1983) is a member of the Imperial House of Japan and the second daughter of Prince Tomohito of Mikasa and Princess Tomohito of Mikasa (Nobuko).



Princess Yōko attended the prestigious Gakushūin School for her primary, junior high, and high school education. The Princess is a graduate of the Gakushuin Women's College, the Faculty of Intercultural Studies, the Department of Japanese Studies with a bachelor's degree in Japanese Studies.


She had subsequently been active in various volunteer activities, especially with the Japanese Red Cross Society, since December 2006 to November 2012.[1] She was inaugurated as the Patron of the International association for Universal Design (IAUD) from August 2013.[1] On 21 November 2013, Princess Yōko attended the ceremony commemorating the 10th anniversary of establishment of IAUD held in Yokohama city, Kanagawa prefecture. She took over the chair of the president from her father, Prince Tomohito.[2] She was inaugurated as the Patron of the International association for Universal Design from August 2013 and also she was inaugurated as the President of the Social Welfare Organization Yuai Jyuji kai from January 2014.

Public appearances[edit]

In October 2003, she became an adult member of the Imperial Family and started attending official ceremonies and events in Japan with the other members of the Imperial Family, including garden parties and New Year's ceremonies.

A practitioner of the traditional Japanese martial art of kendo from an early age, the princess was selected to participate in exhibition tournaments in France and Germany in 2005, as well as the Aichi World’s fair held the same year. In July 2006, Princess Yōko attended the national convention Kendo Housewives.

Prince Tomohito's death[edit]

On 6 June 2012, Prince Tomohito died from multiple organ failure. His funeral ceremony, called "Renso no Gi," was held at the Toshimagaoka Imperial Cemetery in Bunkyo Ward, Tokyo and was attended by Princess Yōko and other members of the Imperial Family.[3] In June 2013, the Imperial Household Agency said it has reduced the number of households in the Imperial family by one, following the passing of Prince Tomohito a year ago.[4] The household led by the late Prince has been integrated into the one led Prince Mikasa. The step was applied retroactively from 6 June last year, the day of the Prince’s demise.[4] As a result, the number of households in the Imperial family dropped to five, excluding those led by Emperor Akihito and Crown Prince Naruhito. The household integration will not change the living arrangements of the three former members of the late Prince’s household or the amount of living expenses they receive from state coffers, agency officials said.[4]

Titles and styles[edit]

Styles of
Princess Yōko of Mikasa
Mikasa-no-miya mon
Reference style Her Imperial Highness
Spoken style Your Imperial Highness
Alternative style Ma'am

Yōko is styled as Her Imperial Highness Princess Yōko of Mikasa.


See also List of honours of the Japanese Imperial Family by country

National honours[edit]



  1. ^ a b Their Imperial Highnesses Prince and Princess Mikasa and their family - Official website
  2. ^ "10th anniversary of IAUD". Retrieved 2013-12-13. 
  3. ^ "Prince Tomohito's funeral draws 660 luminaries". Japan Times. Archived from the original on July 19, 2012. Retrieved 9 January 2013. 
  4. ^ a b c "Prince's 2012 passing reduces Imperial household families by one". Japan Times. Retrieved 2013-12-13. 

External links[edit]

Princess Yōko of Mikasa
Born: 25 October 1983
Order of precedence in Japan
Preceded by
Princess Akiko of Mikasa
HIH Princess Yōko of Mikasa
Succeeded by
Princess Tsuguko of Takamado