Imperial Household (Japan)

The Imperial Household (内廷皇族 Naitei kōzoku, also known as the Inner court), is the term for the Emperor of Japan's direct family and includes the Empress, the Empress dowager, the Grand Empress Dowager, the Imperial Crown Prince, (皇太子, kōtaishi, the heir to the throne who is son of the current Emperor), and the Imperial Crown Princess (皇太子妃, kōtaishihi, the wife of the Imperial Crown Prince), and any unmarried children of the above.[1]

Currently Prince Fumihito holds the title of kōshi (皇嗣) as he is not the son of the current emperor, thus is not part of the Imperial household. His wife, Princess Kiko, currently holds the title kōshihi (皇嗣妃), as she is the wife of the crown prince, and not the wife of the Imperial Crown Prince. Princess Abe is the only woman to have held the title Imperial Crown Prince in her own right.[2]

The Empress Emerita, based on the Emperor Abdication Law, is considered an equivalent to Empress Dowager (a title she will receive should her husband predecease her). The Emperor and Emperor Emeritus are usually excluded from this.[3]

History

During the Taishō era, the Imperial Household comprised the following:

The Imperial Household members[4]
Title Name and Image Birthday Ceased to be part of the Imperial Household Reason Relationship to the Emperor Marriage date
Empress Sadako 25 June, 1884 N/A N/A Wife 10 May, 1900
Imperial Crown Prince Hirohito 29 April, 1901 N/A N/A Son 26 January, 1924 (As the Imperial Crown Prince, his marriage did not establish a new household)
Imperial Crown Princess Nagako 6 March, 1903 N/A N/A Daughter-in-law (As wife of Hirohito) 26 January, 1924
Teru-no-miya[a] Shigeko 6 December, 1925 N/A N/A Granddaughter N/A
Atsu-no-miya Yasuhito 25 June, 1902 N/A N/A Son N/A
Teru-no-miya[b] Nobuhito 3 January, 1905 N/A N/A Son N/A
Sumi-no-miya Takahito 2 December, 1915 N/A N/A Son N/A
Empress Dowager Shōken 9 May, 1849 N/A Never formally ceased to be part of the Imperial Household. Passed away aged 64 on 9 April, 1914. Step-mother[c] 11 January, 1869

During the Shōwa era, the Imperial Household comprised the following:

The Imperial Household members[4]
Title Name and Image Birthday Ceased to be part of the Imperial Household Reason Relationship to the Emperor Marriage date
Empress Nagako 6 March, 1903 N/A N/A Wife 26 January, 1924
Imperial Crown Prince Akihito 23

December, 1933

N/A N/A Son 10 April, 1959 (As the Imperial Crown Prince, his marriage did not establish a new household)
Imperial Crown Princess Michiko 20 October, 1934 N/A N/A Daughter-in-law (As wife of Akihito) 10 April, 1959
Hiro-no-miya Naruhito 23 February, 1960 N/A N/A Grandson N/A
Aya-no-miya Fumihito 30 November, 1965 N/A N/A Grandson N/A
Nori-no-miya Sayako 18 April, 1969 N/A N/A Granddaughter N/A
Yoshi-no-miya (Before marriage, Hitachi-no-miya after) Masahito 28 November, 1935 30 September, 1964 Marriage to Hanako Tsugaru Son 30 September, 1964
Teru-no-miya Shigeko 6 December, 1925 10 October, 1943 Marriage to Morihiro Higashikuni(then Prince Morihiro) Daughter 10 October, 1943
Hisa-no-miya Sachiko 10 September, 1927 N/A Never formally ceased to be part of the Imperial Household. Passed away at 5 months old on 8 March, 1928. Daughter N/A
Taka-no-miya Kazuko 30 September, 1929 20 May, 1950 Marriage to Toshimichi Takatsukasa Daughter 20 May, 1950
Yori-no-miya Atsuko 7 March, 1931 10 October, 1952 Marriage to Takamasa Ikeda Daughter 10 October, 1952
Suga-no-miya Takako 2 March, 1939 10 March, 1960 Marriage to Hisanaga Shimazu Daughter 10 March, 1960
Empress Dowager Sadako 25 June, 1884 N/A Never formally ceased to be part of the Imperial Household. Passed away aged 66 on 17 May, 1951. Mother 10 May, 1900

During the Heisei era, the Imperial Household comprised the following:

The Imperial Household members[4]
Title Name and Image Birthday Ceased to be part of the Imperial Household Reason Relationship to the Emperor Marriage date
Empress Michiko 20 October, 1934 N/A N/A Wife 10 April, 1959
Imperial Crown Prince Naruhito 23 February, 1960 N/A N/A Son 19 January, 1993 (As the Imperial Crown Prince, his marriage did not establish a new household)
Imperial Crown Princess Masako 9 December, 1963 N/A N/A Daughter-in-law (As wife of Naruhito) 19 January, 1993
Toshi-no-miya Aiko 1 December, 2001 N/A N/A Granddaughter N/A
Aya-no-miya (Akishino-no-miya after marriage) Fumihito 30 November, 1965 29 June, 1990 Marriage to Kiko Kawashima and establishment of own household Son 29 June, 1990
Nori-no-miya Sayako 18 April, 1969 15 November, 2005 Marriage to Yoshiki Kuroda and loss of title Daughter 15 November, 2005

Current members

These are the current members of the Imperial Household:

The Imperial Household members[4]
Title Name and Image Birthday Ceased to be part of the Imperial Household Reason Relationship to the Emperor Marriage date
Empress Masako 9 December, 1963 N/A N/A Wife 19 January, 1993
Toshi-no-miya Aiko 1 December, 2001 N/A N/A Daughter N/A
Empress Emerita Michiko 20 October, 1934 N/A N/A Mother 10 April, 1959

Despite Akihito's abdication, Michiko is still part of the Imperial Household.[3] Should Akihito die before her, Michiko would become Empress Dowager.

Extended imperial family

The imperial family of Japan is split into the following branches:

Notes

  1. ^ 照宮
  2. ^ 光宮
  3. ^ Emperor Taishō's birth mother was a concubine named Yanagiwara Naruko. However, Shōken was Emperor Meiji's official wife, adoptive mother of Emperor Taishō, and held the title Kōgō (empress consort). As the official widow of the emperor (due to holding the title Kōgō) she is the Empress Dowager. As for Taishō's birth mother, while she remained a part of the Imperial court until her death, since she did not hold any of the titles needed to be considered part of the Inner-court/Imperial Household, she is not counted as a member.

References

  1. ^ a b c d e "The Imperial family". The Imperial Household Agency. Retrieved 25 October 2025.
  2. ^ McKay, Dr Natalie (8 December 2022). "More than placeholders: The 'century of empresses' against modern succession laws". Melbourne Asia Review. 2022 (12).
  3. ^ a b "Budgetary Matters". The Imperial Household Agency. Retrieved 25 October 2025. These are the personal expenses to be spent by His Majesty, His Majesty the Emperor Emeritus and inner-court members of the Imperial Family (Naitei-Kozoku)". Later it distinguishes the other households "In order that the Imperial Family is able to maintain a life-style that befits its position, each member of the Imperial Family, excluding His Majesty and inner-court members of the Imperial Family (Naitei-Kozoku)
  4. ^ a b c d "Personal Histories". The Imperial Household Agency. Retrieved 25 October 2025.
  5. ^ a b 日本放送協会 (30 September 2025). "不在の三笠宮家当主は彬子さまに 母・信子さまは新宮家創設へ". NHKニュース (in Japanese). Retrieved 25 October 2025.
  6. ^ a b "三笠宮家の新当主に彬子さま 母・信子さまは新宮家創設で分裂". 毎日新聞 (in Japanese). Retrieved 25 October 2025.