During the Meiji period, an Imperial decree dated March 3, 1911, established that the legitimate reigning monarchs of this period were the direct descendants of Emperor Go-Daigo through Emperor Go-Murakami, whose Southern Court (南朝, nanchō) had been established in exile in Yoshino, near Nara.[3]
Until the end of the Edo period, the militarily superior pretender-Emperors supported by the Ashikaga shogunate had been mistakenly incorporated in Imperial chronologies, despite the undisputed fact that the Imperial Regalia were not in their possession.[3]
1372, also called Bunchū gannen (文中元年): The new era name was created to mark an event or series of events. The previous era ended and the new one commenced in Kentoku 3.[4]
In this time frame, Ōan (1368–1375) was the Southern Court equivalent nengō.[4]