Mr. Ishigami - Isonokamiuji

Japanese: 石上氏 - いそのかみうじ

One of the powerful clans of ancient times. Originally a member of the Mononobe clan, the clan was based in Yamato Province, Yamabe County (present-day Furu Town, Tenri City), where they performed the rituals at Isonokami Shrine, which worshiped the sword god of the Yamato Imperial Court. In 684 (Tenmu 13), Mononobe Maro was given the surname Ason by Muraji, and from that time on, the Maro clan took the Isonokami clan as its surname. In 691 (Jito 5), along with 17 other clans such as Omiwa and Suzumebe, they were ordered to submit the grave records of their ancestors. Maro later rose to the position of Minister of the Left, and his son Otomaro also rose to the position of Chunagon, making them prominent in the political world in the first half of the 8th century.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

古代の有力氏族の一つ。元来は物部氏を構成した一族で，大和国山辺郡(現，天理市布留町)を本拠とし，その地でヤマト朝廷の剣神を祭る石上神宮の祭祀にあたった。684年(天武13)物部麻呂は連（むらじ）から朝臣（あそん）の姓（かばね）を与えられ，このときから，麻呂の一族は石上を氏とすることになった。691年(持統5)には，大三輪，雀部など17氏とともに，祖先らの〈墓記〉を上進させられた。麻呂は，このあと左大臣にまですすみ，子の乙麻呂も中納言まですすむなど，8世紀前半の政界で活躍がめだった。

出典　株式会社平凡社世界大百科事典第２版について　情報

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