Rulers of Bamburgh
The Rulers of Bamburgh (Old English: Bebbanburh; Old Irish: Dún Guaire; Brittonic: Din Guairoi) were significant regional potentates in what is now northern England and south-eastern Scotland during the Viking Age. Sometimes referred to in modern sources as the Earldom of Bamburgh, their polity existed for roughly two centuries, beginning after the attacks on the Anglo-Saxon Kingdom of Northumbria by the Vikings in the later ninth century, and ending after the Norman Conquest later in the eleventh century.