Brother of Halfdan I, was a son of Ragnar Lodbrog (‘Hairy-breeks’), a Danish leader who had harried the France of Charles ‘the Bald’ in 845. Ivar established himself in Dublin in the 850s; in 865 he and his brother invaded East Anglia, and two years later switched their onslaught to Northumbria, capturing York. Northern England seems to have been left to Halfdan while Ivar returned to Ireland in 871, to die there in 873. A late source accuses him of killing Aelle, captured at York, as a blood-sacrifice, and of martyring Edmund, king of the East Angles, in 869.
From The Kings and Queens of Britain in Oxford Reference.
Subjects: British History.