Jōtoku
Jōtoku (承徳?) was a Japanese era name (年号 nengō?, "year name") after Eichō and before Kōwa. This period spanned the years from November 1097 through August 1099. The reigning emperor was Emperor Horikawa-tennō (嘉保天皇?).
...
Wikipedia
Jōtoku (承徳?) was a Japanese era name (年号 nengō?, "year name") after Eichō and before Kōwa. This period spanned the years from November 1097 through August 1099. The reigning emperor was Emperor Horikawa-tennō (嘉保天皇?).