Fujiwara no Tadahira

was a Japanese statesman, courtier and politician during the Heian period. He is also known as Teishin-Kō (貞信公) or Ko-ichijō Dono (小一条殿) or Ko-ichijō daijō-daijin. Career Tadahira was a kuge (Japanese noble) who is credited with writing and publishing Engishiki. 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. 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. 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. February 16, 937 (Jōhei 7, 4th day of the 1st month): He presided over the coming of age ceremony of Emperor Suzaku. November 29, 941 (Tengyō 4, 8th day of the 11th month): He became kampaku.