Fujiwara no Uchimaro
Fujiwara no Uchimaro (756–812) was a Northern Fujiwara noble, third son of Dainagon Fujiwara no Matate, and served Emperors Kanmu, Heizei and Saga. He became Sangi in 794 soon after the move to Heian-kyō and in 799 oversaw construction of the new capital. In 806 he was made Udaijin, head of the council.
In the 810 Kusuko Incident he backed Emperor Saga. He died in 812 aged 57 and was posthumously promoted to Daijō-daijin. His son Fuyutsugu laid the foundation of Northern Fujiwara power.