Ragnar and Uhtred are fictional, though a family with Uhtred’s name did hold Bebbanburg (now Bamburgh Castle) later in the Anglo-Saxon period, and as that family are my ancestors, I decided to give them that magical place a little earlier than the records suggest. Most of the major events happened; the assault on York, the siege of Nottingham, the attacks on the four kingdoms, all are recorded in the Anglo-Saxon Chronicle or in Asser’s life of King Alfred, which together are the major sources for the period.
