sentences:  Named targets include Ireland, the Hebrides, Scotland and England.Eric sealed the alliance by giving his daughter Ragnhild in marriage to the future earl of Orkney, Arnfinn, son of Thorfinn Turf-Einarsson.It is when Eric gains the kingship in Northumbria that he finally appears more firmly into the historical limelight, even though the sources provide only scanty detail and present notorious problems of their own.