"Matsushima Diary," a travelogue that seems to have been completed in the middle of the Kamakura period, was once believed to have been written by Sei Shonagon, but it was concluded to be a forged book by Norinaga MOTOORI and others of the Edo period.
鎌倉時代中期頃に成立したと見られる『松島日記』と題する紀行文が清少納言の著書であると信じられた時代もあったが、江戸時代には本居宣長らによって偽書と判断されている。