Kiyohara no Yoshimochi (清原令望)

KIYOHARA no Yoshimochi (year of birth and death unknown) was a government official who lived during the Heian period. He was the lord of Akita-jo Castle. His kabane (hereditary title) was Asomi.

He was at the rank of Shorokui (Senior Sixth Rank) and was a Junior Lieutenant of the Left Division of the Outer Palace Guards. When the Rebellion of Akita-jo Castle Area occurred in 878, he accompanied ONO no Harukaze and left for the area. After the rebellion was suppressed, he became the lord of Akita-jo Castle, worked as a deputy to the Provincial Governor, and was also in charge of supervising Fushu (Emishi [ancient Japanese northerners] who promised to obey Japanese Imperial Court). In 886, he was granted the rank of Jugoinoge (Junior Fifth Rank, Lower Grade), and then served as Shuri Oiseki-shi (a person who was in charge of the maintenance of the sluice of the Oi-gawa River) after experiencing a sani (courtier without post). In around 894, he became a Junior Assistant Govenor-General of the Dazai-fu (local government office in the Kyushu region). He is said to have been the origin of the Kiyohara clan who was based in Senboku, Dewa Province.