It is considered that OE no Iekuni, who was a great-great-grandson of OE no Asatsuna, was one of the successors of Kidendo (the study of the histories), which was kagaku (hereditary learning) of the Oe clan.
大江家国は大江朝綱の玄孫で大江氏の紀伝道の家学を継いだ1人であったと考えられている。