Kiyohara Natsuno

A government official in the early Heian period. He was the son of Prince Ogura, grandson of Prince Toneri, and his mother was from the Ono clan. His childhood name was Shigeno, but in 804 (Enryaku 23), he was given the surname Kiyohara Mahito by his father's petition and changed his name to Natsuno. After serving as Udoneri, he became Kurodo in 810 (Kōnin 1), and when Emperor Junna ascended to the throne, he became Kurodo no Tō and Sakonoe no Chujō, and then a councilor. In 825 (Tenchō 2), he became Jusanmi Chunagon and Saemon no Kami, and held various positions including Sakonoe no Taisho and Tōkyō, before becoming Udaijin in 832. During this time, he participated in the compilation of the "Nihon Koki" (Chronicles of Japan), and in 833 he compiled the "Ryo no Gige" (Chronicles of the Imperial Court), and also revised the "Dairishiki" (Chronicles of the Imperial Court). He proposed the system of appointing princes to the governorship of three provinces, including Hitachi. He loved poetry and prose, and was the author of the "Keikokushu" (Collection of Proverbs). He was also called Minister Narabi or Minister Futago, after the name of his mountain villa, Narabigaoka.

[Muneyoshi Sato]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

平安初期の官僚。舎人(とねり)親王の孫小倉(おぐら)王の子で母は小野氏。幼名を繁野(しげの)王といったが、804年（延暦23）に父の上表により清原真人(まひと)を賜姓され、名を夏野と改めた。内舎人(うどねり)を経て、810年（弘仁1）に蔵人(くろうど)となり、淳和(じゅんな)天皇の即位に伴い蔵人頭(とう)兼左近衛(さこのえ)中将となり、ついで参議となった。825年（天長2）従三位(じゅさんみ)中納言(ちゅうなごん)兼左衛門督(さえもんのかみ)となり、左近衛大将、民部卿(きょう)などを歴任し、832年には右大臣となった。この間『日本後紀』の編纂(へんさん)に加わり、833年には『令義解(りょうのぎげ)』を撰進(せんしん)し、また『内裏式(だいりしき)』も修補した。常陸(ひたち)など3国の国守に親王を任ずる親王任国制はその提案による。詩文を愛し『経国集(けいこくしゅう)』の作者でもある。別業双岡(ならびがおか)山荘の名より比(ならび)大臣、双岡大臣ともよばれた。

［佐藤宗諄］

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