建武新政
When Ashikaga Takauji rebelled against Emperor Go-Daigo's Kenmu Restoration and entered Kyōto in 1336, Go-Daigo fled to Enryaku-ji on Mount Hiei. Despite lacking the sacred treasures, Prince Yutahito was enthroned as emperor, beginning the Northern Court. On the 12th month, 21st day, Go-Daigo escaped to Yoshino, founding the Southern Court.