Hōen (保延) was a Japanese era name (年号, nengō, lit. "year name") after Chōshō and before Eiji. This period spanned the years from September 1135 through July 1141.[1] The reigning emperor was Sutoku-tennō (崇徳天皇).[2]
Change of Era
February 15, 1035Hōen gannen (保延元年): 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.[3]
^Titsingh, Isaac. (1834). Annales des emepereurs du japon, pp. 181-185; Brown, Delmer et al. (1979). Gukanshō, pp. 322-324; Varley, H. Paul. (1980). Jinnō Shōtōki, pp. 204-205.