His achievements were appreciated in the period of the Northern and Southern Courts by Chikafusa KITABATAKE in his book "Jinno Shotoki" (Record of the Legitimate Succession of the Divine Emperors), and in the Edo period, by scholars of Mitogaku (the scholarship and academic traditions that arose in the Mito Domain) and Kokugaku (the study of Japanese classical literature) including Norinaga MOTOORI, and Sanyo RAI.
モンゴルの国書に侵略的意図があったとする前提で、南北朝時代には北畠親房が『神皇正統記』において、江戸時代には水戸学や、本居宣長ら国学者、頼山陽らが評価した。