Ryakuō

Ryakuō (暦応) was a Japanese era of the Northern Court during the Era of Northern and Southern Courts,[1] after Kenmu and before Kōei, lasting from August 1338 to April 1342.

[3] Go-Kōgon's Southern Court rival in Yoshino during this time-frame was Emperor Go-Murakami (後村上天皇, Go-Murakami-tennō).

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.

[4] 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.

[4] This illegitimate Northern Court (北朝, hokuchō) had been established in Kyoto by Ashikaga Takauji.

The Imperial seats during the Nanboku-chō period were in relatively close proximity, but geographically distinct. They were conventionally identified as: