As a grandson of OE no Masahira, there was OE no Masafusa, who was one of the best acedemia in the Heian Period and reportedly taught the art of warfare to MINAMOTO no Yoshiie (Hachimantaro Yoshiie) of Kawachi-Genji (Minamoto clan).
大江匡衡の孫に平安時代屈指の学者であると共に河内源氏の源義家(八幡太郎義家)に兵法を教えたとされる大江匡房がいる。