Tenchō (天長) was a Japanese era name (年号, nengō, lit. "year name") after Kōnin and before Jōwa. This period spanned the years from January 824 through January 834.[1] The reigning emperors were Junna-tennō (淳和天皇) and Ninmyō-tennō (仁明天皇).[2]
Preceded by | Era or nengō Tenchō 824–834 |
Succeeded by |