Meitoku
was a  of the Northern Court during the Era of Northern and Southern Courts after Kōō and before Ōei. This period spanned the years from March 1390 to July 1394. After October 1392, Meitoku replaced the Southern Court's nengō (Genchū).

The emperor in Kyoto was  The Southern Court rival in Yoshino until 1392 was .

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  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 even though it was known that the Imperial Regalia were not in their possession. This illegitimate  had been established in Kyoto by Ashikaga Takauji.

Change of era
 1390, also called : The new era name was created to mark an event or series of events. The previous era ended and the new one commenced after Kōō 2, 15th day of the 1st month.

In the initial years of this time frame, Genchū (1384–1392) was the Southern Court equivalent nengō.

In 1392, the two rival courts were said to be reunited in the era of Meitoku.  Genchū 9 became Meitoku 3 when the two courts were reconciled.

Events of Meitoku era
Ashikaga Yoshimitsu solidified the Bakufu's power by suppressing the power of the daimyōs and the shugo during the Toki Yasuyuki Rebellion, the Meitoku Rebellion and the Ōei Rebellion. In Meitoku 3/Genchū 9 (1392), the Northern Dynasty confiscated the Sacred Treasures which the Southern Court had possessed. With the abdication of Emperor Go-Kameyama, the dynasties, and eras, were consolidated. Hosokawa Yoriyuki, who had reinstated the Bakufu after it lost its standing in the Kōryaku Coup, died in Meiroku 3 (1392) in the Meiroku Rebellion. His younger brother Hosokawa Yoritomo replaced him as the person in control. In Meitoku 4 (1393), Shiba Yoshimasa became the person in control.

 1390 (Meitoku 1): Kusunoki defeated; Yamana Ujikiyo chastises Tokinaga.
 1391 (Meitoku 2): Yamana Ujikiyo attacks Kyoto, an escalation of the Meitoku War (1391–1394) in which Yoshimitsu tried to diminish the power of the Yamana clan which controlled 11 provinces 
 1392 (Meitoku 3): also known as Genchū 9: Northern and Southern courts reconciled under Go-Komatsu.

Notes

References
 Ackroyd, Joyce. (1982) Lessons from History: The Tokushi Yoron. Brisbane: University of Queensland Press. 
 Mehl, Margaret. (1997). History and the State in Nineteenth-Century Japan. New York: St. Martin's Press. ; OCLC 419870136
 Nussbaum, Louis Frédéric and Käthe Roth. (2005). Japan Encyclopedia. Cambridge: Harvard University Press. ; OCLC 48943301
 Thomas, Julia Adeney. (2001). Reconfiguring Modernity: Concepts of Nature in Japanese Political Ideology. Berkeley: University of California Press. ; 
 Titsingh, Isaac. (1834). Nihon Ōdai Ichiran; ou,  Annales des empereurs du Japon.  Paris: Royal Asiatic Society, Oriental Translation Fund of Great Britain and Ireland. OCLC 5850691

External links
 National Diet Library, "The Japanese Calendar" — historical overview plus illustrative images from library's collection

Japanese eras
1390s in Japan