was a kuge

Kuge

The was a Japanese aristocratic class that dominated the Japanese imperial court in Kyoto until the rise of the Shogunate in the 12th century at which point it was eclipsed by the daimyo...

(court bureaucrat) of tenth century Heian

Heian period

The is the last division of classical Japanese history, running from 794 to 1185. The period is named after the capital city of Heian-kyō, or modern Kyōto. It is the period in Japanese history when Buddhism, Taoism and other Chinese influences were at their height...

 Japan. He is famous for his military exploits and courage, and is regarded the common ancestor of the Ōshū

Mutsu Province

was an old province of Japan in the area of Fukushima, Miyagi, Iwate and Aomori prefecture and the municipalities of Kazuno and Kosaka in Akita Prefecture...

 branch of the Fujiwara clan, the Yūki, Oyama, and Shimokōbe families.

Hidesato served under Emperor Suzaku

Emperor Suzaku

was the 61st emperor of Japan, according to the traditional order of succession.Suzaku's reign spanned the years from 930 through 946.-Traditional narrative:...

, and fought alongside Taira no Sadamori

Taira no Sadamori

Taira no Sadamori was a samurai of the Taira clan who was involved in suppressing the revolt of Taira no Masakado in the 930s-940. He was the son of Taira no Kunika and grandson of Taira no Takamochi, the founder of the Kammu Heishi line...

 in 940 in suppressing the revolt of Taira no Masakado

Taira no Masakado

was a samurai in the Heian period of Japan, who led one of the largest insurgent forces in the period against the central government of Kyoto.-History:...

. His prayer for victory before this battle is commemorated in the Kachiya Festival. Hidesato was then appointed Chinjufu-shogun (Defender of the North) and Governor of Shimotsuke Province

Shimotsuke Province

is an old province of Japan in the area of Tochigi Prefecture in the Kanto region. It was sometimes called or .The ancient capital of the province was near the city of Tochigi, but in feudal times the main center of the province was near the modern capital, Utsunomiya.-History:Different parts of...

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