Emperor Heizei

Emperor Heizei (774–824) was the 51st emperor of Japan, reigning from 806 to 809. The eldest son of Emperor Kanmu, he succeeded his father in 806. During his brief reign he reorganized the imperial bodyguards, appointing Sakanoue no Tamuramaro senior commander of the right.

In 809, seriously ill, he abdicated in favor of his younger brother Emperor Saga and retired to Nara. In 810 his consort Fujiwara no Kusuko and her brother Nakanari raised a failed revolt in his name, the Kusuko Incident; Heizei then took Buddhist vows and died in 824.