Takauji ASHIKAGA crushed Emperor Godaigo's Kenmu Restoration, and after being appointed Shogun by Emperor Kogon of the Jimyoin lineage, he formally established his bakufu; Emperor Godaigo, on the other hand, escaped from Kyoto and established a new imperial court at Yoshino, ushering in the Northern and Southern Courts period--the period during which both the Northern and Southern Courts existed simultaneously.
足利尊氏が後醍醐天皇の建武の新政を打倒し、持明院統の光明天皇より征夷大将軍の宣下を受け正式に幕府を開く一方、後醍醐天皇は京都を脱出して吉野に吉野朝廷を開き、北朝と南朝が両立する南北朝時代がはじまる。