HōenHōen was a Japanese era name after Chōshō and before Eiji. This period spanned the years from September 1135 through July 1141. The reigning emperor was Emperor Sutoku of Japan.Change of EraFebruary 15, 1035 Hōen gannen: The new era name Hōen was created to mark an event or a series of events. The previous era ended and the new one commenced in Chōshō 4, on the 27th day of the 4th month of 1135.Events of the ''Hōen'' Era1136 : The former-Emperor Toba hosted a grand dinner party.1136 : The sadaijin Fujiwara Ieyetada died at age 75.1136 : The udaijin Minamoto no Arihito was named sadaijin; and the naidaijin Fujiwara Munetada was named udaijin.1136 : Fujiwara Yorinaga was appointed Minister of the Center at the age of 17.1138 : The udaijin Munetada shaved his head at age 77; and he became a Buddhist priest.1138 : The former-Emperor Toba went to Mount Hiei, where he stayed for seven days.May 2, 1140 : The priests of the Buddhist temples on Mount Hiei banded together to burn down the Mii-dera again.