Accordingly, it is assumed that probably MINAMOTO no Masasada (or his predecessor FUJIWARA no Ietada), who served as the master of the Empress's household during the period when Okagami is thought to have been expanded, was responsible for the additions.
このことから、増補されたと考えられる時期に同職を務めた源雅定（あるいは前任の藤原家忠）が増補者であろうと推測されている。