Halfdan Ragnarsson

Viking leader of the Great Heathen Army (died 877)

Halfdan Ragnarsson (Old Norse: Hálfdan; Old English: Halfdene or Healfdene; Old Irish: Albann; died 877), was a Viking leader and a commander of the Great Heathen Army that invaded the Anglo-Saxon kingdoms of England starting in 865. The Anglo-Saxon Chronicle describes him as a "heathen king". Halfdan was one of six sons of Ragnar Lodbrok named in Norse sagas; his brothers and half-brothers included Björn Ironside, Ivar the Boneless, Sigurd Snake-in-the-Eye, Ubba and Hvitserk.

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