The Birkebeiner War was a conflict in Norway during the early 13th century, primarily between two factions: the Birkebeiners and the Baglers. The Birkebeiners supported the rightful king, Haakon Haakonsson, while the Baglers were loyal to a rival claimant. The war was marked by battles and political intrigue as both sides vied for control of the Norwegian throne. The conflict is named after the Birkebeiners, who were known for their ruggedness and resilience. They famously carried the infant Haakon to safety during a critical moment in the war, symbolizing their commitment to the rightful monarchy. The war ultimately shaped the future of Norway's royal lineage.