Hereward the Wake
Several primary sources exist for Hereward's life. Their accuracy is difficult to judge. They are the version of the Anglo-Saxon Chronicle written at Peterborough Abbey (the "E manuscript" or Peterborough Chronicle), the Domesday Book (DB), the Liber Eliensis (Book of Ely) and, much the most detailed, the Gesta Herewardi (Gesta).