Angen (安元) was a Japanese era name (年号, nengō, lit. "year name") after Jōan and before Jishō. This period spanned the years from July 1175[1] through August 1177.[2] The reigning emperor was Takakura-tennō (高倉天皇).[3]
^Titsingh, Isaac. (1834). Annales des empereurs du Japon, pp. 195-200; Brown, Delmer et al. (1979). Gukanshō, pp. 330-333; Varley, H. Paul. (1980). Jinnō Shōtōki. pp. 212-214.