Eitoku
Eitoku was a Japanese era name of the Northern Court during the Era of Northern and Southern Courts after Kōryaku and before Shitoku. This period spanned the years from February 1381 to February 1384. The emperors in Kyoto were Emperor Go-En'yū and Emperor Go-Komatsu The Southern Court rivals in Yoshino during this time-frame were Emperor Chōkei and Emperor Go-Kameyama.
Nanboku-chō overview
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 had been established in exile in Yoshino, near Nara.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 widespread recognition that the Imperial Regalia were not in their possession.
This illegitimate Northern Court had been established in Kyoto by Ashikaga Takauji.
Change of era
1381, also called Eitoku gannen: The new era name was created to mark an event or series of events. The previous era ended and the new one commenced in Kōryaku 3.In this time frame, Kōwa (Muromachi period) was the Southern Court equivalent ''nengō.''