Halfdan Ragnarsson was a commander of a coalition of Norse warriors, originating from where?
Halfdan Ragnarsson Halfdan Ragnarsson (Old Norse: "Hálfdan" ; or "Healfdene"; Old Irish: "Albann" ; died 877) was a Viking leader and a commander of the Great Heathen Army which invaded the Anglo-Saxon kingdoms of England, starting in 865. According to the tradition recorded in the Norse sagas he was one of the sons of Ragnar Lodbrok, and his brothers included Björn Ironside, Ivar the Boneless, Sigurd Snake-in-the-Eye and Ubba. He was the first Viking King of Northumbria and a pretender to the throne of Kingdom of Dublin. He died at the Battle of Strangford Lough in 877 trying to press his Irish claim.
Naddodd Naddod (Old Norse: "Naddoðr" or "Naddaðr" , literally "studded") was a Norse-Faroese Viking who is credited with the discovery of Iceland. Naddod was also one of the first settlers on the Faroe Islands after Grímur Kamban became the first to settle there around 825. Naddod was born in Agder, which comprises the two Norwegian counties of Aust-Agder and Vest-Agder.