After Imperial Prince Sawara's death, terrible incidents came one after another, for example: Emperor Heizei, the oldest son of Emperor Kanmu, fell ill, and FUJIWARA no Otomuro, the wife of Emperor Kanmu, died with sickness.
その後、桓武天皇の長男平城天皇（後の平城天皇）の発病や桓武天皇妃藤原乙牟漏の病死などが相次いだ。