Nanboku-cho

The , spanning from 1336 to 1392, was a period that occurred during the early years of the Muromachi period of Japan's history. During this period, there existed a North Imperial Court, established by Ashikaga Takauji in Kyoto, and a South Imperial Court, established by Emperor Go-Daigo in Yoshino.The two courts fought for 50 years, with the South giving up to the North in 1392. Still, the Emperors of the South Imperial Court are today considered the legitimate Emperors of Japan, since they controlled the Japanese imperial regalia. This view dates from the 19th century.
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