Kyūan
Kyūan, also romanized as Kyū-an, was a Japanese era name after Ten'yō and before Ninpei. This period spanned the years from July 1145 through January 1151. The reigning emperor was Emperor Konoe.
Change of Era
January 25, 1145 Kyūan gannen: The new era name was created because a comet was sighted in the sky in the 7th month of Ten'yō gannen. One era ended and a new one commenced in Ten'yō 1, on the 22nd day of the 7th month of 1145.
Events
1145 : The mother of former-Emperor Sutoku, Taiken-mon In, died.1146, Emperor Konoe visited Emperor Toba-no-Hōō.1146, Konoe joined in a celebration honoring Sesshō Fujiwara no Tadamichi on his 58th birthday.1148 : The imperial palace was consumed by flames.1150 : Konoe assumed the role of a mature adult; and he married Fujiwara-no Tokoku, who had been raised by sadaijin Fujiwara-no Yorinaga. Tokoku was the daughter of dainagon Taira-no Kiyomori. This bride became kōgū.1150 : Konoe married again, this time to a daughter raised by Sesshō Fujiwara-no Tadamichi. She was the daughter of Dainagon Fujiwara-no Koremichi. This bride became chūgyo. Konoe was so very much enamoured of this second wife that he neglected his first wife, which caused discord in the kugyō, especially between Tadamichi and Yorinaga.1150 : Sesshō Minamoto-no Tadamichi, resigns his position and is named daijō daijin. In this same month, Minamoto-no Yoshikane became head of the Ashikaga clan in Shimotsuke Province.