Also various existing history books of "Nihon koki (history book on Japan)" of Rikkokushi (Japan's six national histories) were said to be based on the original text which Norimitsu transcribed from the Sanjonishi family. (theory of Tei MORITA).
また、六国史の『日本後紀』の現在の諸書も紀光が三条西家から書写・校訂したものが底本になっているという説がある（森田悌説）。