Fujiwara no Tadahira
Fujiwara no Tadahira (880–949) was a Heian-period noble, the fourth son of Fujiwara no Mototsune. After his brother Tokihira died in 909, he took charge as head of the Fujiwara clan, becoming udaijin in 914 and sadaijin in 924.
In 927 he completed the Engishiki code of rites and regulations. In 930, under the infant Emperor Suzaku, Tadahira was appointed sesshō; he became daijō-daijin in 936 and kampaku in 941, and remained in power until his death.