According to historical materials such as "Azuma Kagami" and the "Gyokuyo," a journal of Kanezane KUJO, armed priests of Enryaku-ji Temple of Mt. Hiei sheltered Yoshitsune and his retainers, who escaped from Kyoto and stayed hidden around Mt. Hiei; one of those priests named Shunsho took them to Oshu.
史料である『吾妻鏡』や『玉葉』によると、都落ちの後、周辺に潜伏する義経を比叡山の悪僧（僧兵）らが庇護しており、その中の俊章（しゅんしょう）という僧は義経を奥州まで案内したとされる。