Halfdan Ragnarsson

Halfdan Ragnarsson was a Viking leader associated with the Great Heathen Army’s invasions of England in the ninth century. He became king in Northumbria after the army’s campaigns there.

Great Heathen Army: A Viking force that invaded the Anglo-Saxon kingdoms of England from 865. Halfdan was one of its leaders during the invasion and settlement campaigns.
Anglo-Saxon Chronicle: A set of Old English annals begun in the late ninth century that records events in Anglo-Saxon England. Its annals provide the main contemporary narrative of the army’s campaigns.
Ivar the Boneless: A Viking leader associated with the Great Heathen Army’s invasion of England. Medieval accounts connect Ivar with Halfdan as a leader of the invading force.
Danelaw: The area of England where Danish law and Scandinavian political influence prevailed during parts of the Viking Age. Viking settlement after campaigns like Halfdan’s helped establish Scandinavian rule in eastern and northern England.
Battle of Ashdown: A battle in 871 in which West Saxon forces defeated a Viking army. The battle belongs to the campaign in which Halfdan’s army fought Wessex.
Asser: A Welsh cleric who wrote a Latin life of Alfred the Great in the late ninth century. His account offers a West Saxon perspective on the Viking leaders and their wars.
Ubba: A Viking commander named in accounts of ninth-century campaigns in England. He is associated with the same invasion tradition and army as Halfdan.
Viking Age in England: The period of Scandinavian raids, settlement, and rule in England from the late eighth century onward. Halfdan’s campaigns formed part of the transformation of English politics by Viking conquest.
Kingdom of Northumbria: An Anglo-Saxon kingdom in northern England that was conquered and divided by Viking forces. Halfdan became king in Northumbria after the Great Heathen Army’s conquest.
Ragnar Lodbrok: A legendary Viking figure whose stories appear in medieval Scandinavian literature. Later traditions make Halfdan a son of Ragnar, a genealogy not securely confirmed by contemporary evidence.

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Björn IronsideRelated: He appears as Björn’s brother in traditions about Ragnar’s sons and Viking campaigns.