Kōshō

Kōshō (康正) was a Japanese era name (年号) after Kyōtoku and before Chōroku. This period spanned the years from July 1455 through September 1457. The reigning emperor was Go-Hanazono-tennō (後花園天皇).

Change of Era

 * 1455 Kōshō gannen (康正元年): The era name was changed to mark an event or a number of events.

Events of the Kōshō era

 * 1456 (Kōshō 2, 3rd month): Ashikaga Yoshimasa visited Iwashimizu Shrine; and all the officials of the Daijō-kan joined him in going there.
 * 1456 (Kōshō 2, 8th month): The father of Emperor Go-Hanazono, Fushimi-no-miya-shinnō Sadafusa, died at age 85.