was a after Bunryaku and before Ryakunin. This period spanned the years from September 1235 to November 1238. The reigning emperor was . Change of era 1235 : The era name was changed to mark an event or a number of events. The previous era ended and a new one commenced in Bunryaku 2. Events of the Katei Era 1235 (Katei 1, 11th month): Kujō Yoritsune is raised to the second rank of the second class in the court hierarchy (the dōjō kuge). 1236 (Katei 2, 7th month): Yoritsune is raised to the first rank of the second class in the dōjō kuge. 1237 (Katei 3, 8th month): Yoritsune ordered the building of a mansion in the Rokuhara section of Kyoto. Notes References Nussbaum, Louis-Frédéric and Käthe Roth. (2005). Japan encyclopedia. Cambridge: Harvard University Press. ; OCLC 58053128 Titsingh, Isaac. (1834). Nihon Odai Ichiran; ou, Annales des empereurs du Japon. Paris: Royal Asiatic Society, Oriental Translation Fund of Great Britain and Ireland. OCLC 5850691 Varley, H. Paul. (1980). A Chronicle of Gods and Sovereigns: Jinnō Shōtōki of Kitabatake Chikafusa. New York: Columbia University Press. ; OCLC 6042764 External links National Diet Library, "The Japanese Calendar" -- historical overview plus illustrative images from library's collection Japanese eras 1230s in Japan