Kōji (Heian period)
Kōji (康治) was a Japanese era name (年号, nengō,, lit. "year name") after Eiji and before Ten'yō. This period spanned the year from April 1142 through February 1144. The reigning emperor was Konoe-tennō (近衛天皇).
...
Wikipedia
Kōji (康治) was a Japanese era name (年号, nengō,, lit. "year name") after Eiji and before Ten'yō. This period spanned the year from April 1142 through February 1144. The reigning emperor was Konoe-tennō (近衛天皇).