1247 Hōji gannen (宝治元年); 1247: The new era name was created to mark an event or a number of events. The previous era ended and a new one commenced in Kangen 5.
1247 (Hōji 1): The Hōji conflict; Hōjo family destroyed the Miura family; and in so doing, the clan consolidated its authority as regents.
Hōji (宝治) was a Japanese era name (年号,, nengō,, lit. "year name") after Kangen and before Kenchō. This period spanned the years from February 1247 to March 1249. The reigning emperor was Go-Fukakusa-tennō (後深草天皇,).