Ōe no Masafusa(大江匡房, lived 1041-1111) was a famed Japanese scholar and tutor under the emperors of Shirakawa, Horikawa, and Toba. Masafusa was most known by his title of "Acting Middle Counselor". Masafusa became mainly known for being the author of the famous work: Gōke Shidai. For the ceremonial and public functions in the eleventh century, this became one of the most valuable sources of historic information. During the year of 1111, Masafusa died at the age of 71. Masafusa authored a number of texts, including: