Akira IMATANI talked about the theory of the usurpation of the imperial throne by Yoshimitsu ASHIKAGA in his literary work, "Muromachi no oken (regal power of Muromacchi) usurpation of sovereignty plan by Yoshimitsu ASHIKAGA." (Chuokoron-shinsha, Inc.)
今谷明は著書『室町の王権足利義満の王権簒奪計画』（中央公論新社）で足利義満の皇位簒奪説を説いた。