Fujiwara no Tadahira

Fujiwara no Tadahira (藤原 忠平, 880 – September 9, 949) was a Japanese statesman, courtier and politician during the Heian period.[1] He is also known as Teishin-Kō (貞信公) or Ko-ichijō Dono (小一条殿) or Ko-ichijō daijō-daijin.[1]

Fujiwara no Tadahira
Fujiwara no Tadahira.jpg
Tadahira by Kikuchi Yōsai
Imperial Regent of Japan
In office
October 16, 930 – September 9, 949
Preceded byFujiwara no Mototsune
Succeeded byFujiwara no Saneyori
Personal details
DiedSeptember 9, 949(949-09-09) (aged 68–69)
Heian Kyō (Kyōto)
Spouse(s)Minamoto no Junshi
Minamoto no Shōshi
ParentsFujiwara no Mototsune (father)


Tadahira was a kuge (Japanese noble) who is credited with writing and publishing Engishiki.[1] He is one of the principal editors responsible for the development of the Japanese legal code known as Sandai-kyaku-shiki, sometimes referred to as the Rules and Regulations of the Three Generations.[2]

Tadahira served as regent under Emperor Suzaku who ruled from 930 to 946.

  • September 17, 914 (Engi 14, 25th day of the 8th month): Dainagon Tadahira was named udaijin.[3]
  • October 16, 930 (Enchō 8, 22nd day of the 9th month): Tadahira was appointed sesshō.
  • September 7, 936 (Jōhei 6, 19th day of the 8th month): He assumed the role of daijō-daijin.[4]
  • February 16, 937 (Jōhei 7, 4th day of the 1st month): He presided over the coming of age ceremony of Emperor Suzaku.[4]
  • November 29, 941 (Tengyō 4, 8th day of the 11th month): He became kampaku.[1]


This member of the Fujiwara clan was the son of Mototsune.[1] Tadahira's brothers were Fujiwara no Tokihira and Fujiwara no Nakahira.[5] Emperor Murakami was the maternal nephew of Tadahira.

Tadahira took over the head of the Hokke branch of the Fujiwara clan in 909 when his elder brother Tokihira died.

Wives and progenyEdit

He was married to Minamoto no Junshi (源 順子), daughter of Emperor Uda.

They had a son.

He was also married to Monamoto no Shōshi (源 昭子), daughter of Minamoto no Yoshiari.

They had several children.

Daughters' mothers were unknown. (She might be Junshi or Shōshi.)

  • Kishi (貴子) (904–962) - consort of Crown Prince Yasuakira
  • Kanshi (寛子) (906–945) - consort of Imperial Prince Shigeakira

Selected worksEdit

In a statistical overview derived from writings by and about Fujiwara no Tadahiro, OCLC/WorldCat encompasses roughly 9 works in 13 publications in 2 languages and 201 library holdings.[8]

  • 延喜式 (1723)[9]
  • 延喜式 (1828)
  • Teishinkōki: the Year 939 in the Journal of Regent Fujiwara no Tadahira (1956)



  1. ^ a b c d e Nussbaum, Louis-Frédéric. (2005). "Fujiwara no Tadahira" in Japan Encyclopedia, p. 209, p. 209, at Google Books; Brinkley, Frank et al. (1915). A History of the Japanese People from the Earliest Times to the End of the Meiji Era, p. 203., p. 203, at Google Books
  2. ^ Brinkley, p. 177., p. 177, at Google Books
  3. ^ Titsingh, Isaac. (1834). Annales des empereurs du japon, p. 133., p. 133, at Google Books; see "Fousiwara-no Tada fira", pre-Hepburn romanization
  4. ^ a b Titsingh, p. 135., p. 135, at Google Books
  5. ^ Brinkley, p. 241., p. 241, at Google Books
  6. ^ Nussbaum, "Fujiwara no Saneyori" in p. 208, p. 208, at Google Books; Titsingh, p. 138., p. 138, at Google Books
  7. ^ Nussbaum, "Fujiwara no Morosuke" in p. 206, p. 206, at Google Books.
  8. ^ WorldCat Identities Archived December 30, 2010, at the Wayback Machine: Fujiwara, Tadahira 880-949
  9. ^ Nussbaum, "Fujiwara no Tokihira" in p. 210, p. 210, at Google Books.


  • Brinkley, Frank and Dairoku Kikuchi. (1915). A History of the Japanese People from the Earliest Times to the End of the Meiji Era. New York: Encyclopædia Britannica. OCLC 413099
  • Nussbaum, Louis-Frédéric and Käthe Roth. (2005). Japan encyclopedia. Cambridge: Harvard University Press. ISBN 978-0-674-01753-5; OCLC 58053128
  • Titsingh, Isaac. (1834). Nihon Ōdai Ichiran; ou, Annales des empereurs du Japon. Paris: Royal Asiatic Society, Oriental Translation Fund of Great Britain and Ireland. OCLC 5850691