Question: Eystein Haraldsson, was king of Norway from 1142 to 1157, "Øystein Haraldsson", is his name in which North Germanic language spoken mainly in Norway, where it is the official language?
Sentence (from "Eystein II of Norway"): He ruled as co-ruler with his brothers, Inge Haraldsson and Sigurd Munn.
Relevant evidence: No