It is said that powerful members of the Imperial Family and the nobility were buried in Mount Toribe-yama, and in the end of the 10th century venerable monks reportedly burned themselves to death, hoping to attain 'funshi ojo' (according to their Buddhist beliefs, it was a way to become a Buddha after death).
鳥部山は有力な皇族や貴族が葬られており、10世紀末頃には高僧たちがこの地で焚死往生を願って自らの体に火を放って命を絶ったといわれている。