However Nihonshoki has it that the Emperor Tenmu died from a curse of Ama no Murakumo no Tsurugi Sword, and Nihon Koki' (Later Chronicle of Japan) describes that the Emperor Kanmu died from a curse of Totsuka-no-tsurugi Sword (a sacred sword with which Yamata no Orochi was exterminated.)
しかしながら、日本書紀には天武天皇が天叢雲剣の祟りが原因で崩御、日本後紀には桓武天皇が十握剣（八岐大蛇を征服した宝剣）の祟りが原因で崩御したとある。