Genchū
Genchū was a Japanese [era name|Japanese era] of the Southern Court during the Era of Northern and Southern Courts lasting from April 1384 to October 1392. The reigning Emperors were Go-Kameyama of Japan|Go-Kameyama] in the south and Go-Komatsu of Japan|Go-Komatsu] in the north.
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 the undisputed fact that the Imperial [Regalia of Japan|Imperial Regalia] were not in their possession.
This illegitimate Northern Court had been established in Kyoto by Ashikaga Takauji.