Fujiwara no Tadahira

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)

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]


Tadahira was a kuge (Japanese noble) who is credited with writing and publishing Engishiki.[1] He is one of the principle 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]