Eystein Magnusson (Old Norse: Eysteinn Magnússon, Norwegian: Øystein Magnusson; c. 1088 – 29 August 1123), also called Eystein I, was King of Norway from 1103 to 1123 together with his half-brothers Sigurd the Crusader and Olaf Magnusson, although since Olaf died before adulthood, only Eystein and Sigurd were effective rulers of the country.
While Sigurd gained fame as the "warrior king" (although owed almost exclusively to his three-year crusade to the Holy Land), Eystein was in contrast portrayed in the sagas as the "peace king" who stayed home in Norway and improved the country. As Eystein never engaged in warfare, considerably less information is written and known about him than about his brother Sigurd, despite his twenty-year-long reign, just a few years short of Sigurd. Eystein nonetheless gained the affection of his people, and was highly regarded by the saga writers for his deeds. Eystein and Sigurd's reign became the longest joint rule in Norwegian history.
