Heguri Clan

An ancient imperial clan descended from Emperor Kōgen and said to have been founded by Heguri no Tsukuno Sukune, the son of Takeuchi no Sukune. Family name Omi. Based in the northwest corner of the Yamato Basin, Heguri no Tsukuno Sukune. In the mid-5th century, after the fall of the Katsuragi clan, during the reign of Emperor Yūryaku, the clan flourished when Matori became minister. However, at the end of the 5th century, his son Shibi fought with the crown prince (Emperor Buretsu) over a woman, and both father and son were killed by Otomo no Kanamura, who was ordered by the crown prince, and the clan rapidly declined. After that, no high-ranking officials participated in national politics again, and they remained a second-rate clan, but in 684 (the 13th year of Emperor Tenmu's reign), they changed their surname from Omi to Ason, and were given the surname Ason, slightly maintaining their status as a distinguished clan. In the Kōgen section of the Kojiki, they appear to be of the same family as 27 other clans, including Soga, Ki, and Kose, but this is likely a later creation and not true.

[Hiromichi Mayuzumi]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

孝元(こうげん)天皇の後裔(こうえい)で、武内宿禰(たけしうちのすくね)の子平群木菟宿禰(へぐりのつくのすくね)を祖とすると伝える古代の皇別氏族。臣(おみ)姓。大和(やまと)盆地の北西隅平群谷を本拠とした。5世紀中ごろ、葛城(かずらき)氏没落後の雄略(ゆうりゃく)朝に真鳥(まとり)が大臣(おおおみ)となって興隆したが、5世紀の末、その子鮪(しび)は皇太子（武烈(ぶれつ)天皇）と女性のことで争い、皇太子の命を受けた大伴金村(おおとものかなむら)によって父子ともに討たれて急速に衰退した。以後ふたたび国政に参与する大官は現れず、二流豪族にとどまったが、684年（天武天皇13）には臣姓を改めて朝臣(あそん)姓を賜り、わずかに名族の面目を保った。『古事記』孝元段には蘇我(そが)、紀(き)、巨勢(こせ)ら27氏と同族とみえるが、後世の作為で事実ではあるまい。

［黛　弘道］

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