Kōshō
Japanese era from July 1455 to September 1457 / From Wikipedia, the free encyclopedia
Kōshō (康正) was a Japanese era name (年号,, nengō,, lit. "year name") after Kyōtoku and before Chōroku. This period started in July 1455 and ended in September 1457.[1] During this time, the emperor was Go-Hanazono-tennō (後花園天皇).[2]