The Civil War Era in Norway, known as the Norwegian Civil War, occurred from 1130 to 1240. This period was marked by a struggle for power between rival factions, primarily the Bagler and Birkebeiner parties. The conflict arose after the death of King Sigurd Jorsalfar, leading to disputes over the throne and control of the kingdom. The wars were characterized by shifting alliances and battles across Norway. The Birkebeiner faction, which supported the claim of King Inge Bårdsson, eventually emerged victorious, leading to a more centralized monarchy. This era significantly shaped Norway's political landscape and set the stage for future governance.