sentences:  Guy of Warwick, the legendary English Romance hero, is depicted as defeating in single combat the Viking giant Colbrand; the story is set in the time of Athelstan of England, but actually reflects the society of the late Middle Ages.An important episode in Geoffrey of Monmouth's legendary "History of the Kings of Britain" is the single combat between prince Nennius of Britain and Julius Caesar.Single combat was also a prelude to battles in pre-Islamic Arabia and early Islamic battles.