Furthermore, Seimei's two sons, ABE no Yoshimasa and ABE no Yoshihira, were assigned as the scholar of the ancient astrology and Ommyojo (Deputy Minister of Ommyo-ryo), and during Seimei's generation alone the Abe clan became an Ommyodo family, just like Tadayuki MORO of the Kamo clan.
さらに天文博士や陰陽助（陰陽寮の次官）に晴明の二人の息子安倍吉昌と安倍吉平が任ぜられ、安倍氏は晴明一代の間に師忠行の賀茂氏と並ぶ陰陽道の家となっていった。