As a result, it is thought Chikafusa KITABATAKE wrote it while he was in the Kanto, and used only what few references he had on hand in writing it, which explains the errors and misrepresentations seen here and there concerning true historical events (as they were understood in those days).
そのため北畠親房が関東にいた時期に執筆がなされており、手元にある僅かな資料だけを参照に書いているため、（当時知られていた）歴史的事実に関しての間違いも散見される。