Osberht of Northumbria - Sagas

Sagas

Ragnarssona þáttr (The Tale of Ragnar's sons) adds a great deal of colour to accounts of the Viking conquest of York. This associates the semi-legendary king of Sweden Ragnar Lodbrok and his sons, Hvitserk, Björn Ironside, Sigurd Snake-in-the-Eye, Ivar the Boneless, and Ubbe. According to the stories, Ragnar was killed by Ælla, and the army which seized York in 866 was led by Ragnar's sons who avenged his death by subjecting Ælla to the blood eagle.

Earlier English sources record that Ælla and Osberht died in battle, the Anglo-Saxon Chronicle stating that "both the kings were slain on the spot" The main figure in the revenge tales in Ivar, who is sometimes associated with the Viking leader Ímar, brother of Amlaíb Conung, found in the Irish annals. Dorothy Whitelock notes that "it is by no means certain that he should be identified with the son of Ragnar, for the name is not uncommon". The Anglo-Saxon Chronicle does not name the leaders in Northumbria, but it does state that "Hingwar and Hubba" slew King Edmund of East Anglia (Saint Edmund) some years later. Hubba is named as a leader of the army in Northumbria by Abbo of Fleury, and by the Historia Historia de Sancto Cuthberto. Symeon of Durham lists the leaders of the Viking army as "Halfdene, Inguar, Hubba, Beicsecg, Guthrun, Oscytell, Amund, Sidroc and another duke of the same name, Osbern, Frana, and Harold."

Norman historian Geoffrey Gaimar and Geoffrey of Wells both associate an Englishman named "Bern" or "Buern" with bringing the Danes to England, in Gaimar's case to Northumbria, in Geoffrey of Wells' mid-twelfth-century hagiography of Saint Edmund, to East Anglia. Gaimar's account has "Buern" seeking revenge for Osberht's rape of his wife.