Wikipedia
Jitchū
(?-824) was a Buddhist monk in Nara Japan of the Kegon sect, and pupil of Roben. In his later years, Jitchu oversaw the expansion of Todaiji temple, and introduced liturgy and rituals still used today. The most noteworthy of these ceremonies is the Shuni-e repentance ceremony established by Jitchu at the request of Empress Kōmyō, wife of Emperor Shomu, who hoped to heal the ailing Emperor.