Beowulf:

"The hero of all heroes," Beowulf, strong and courageous, is the prince of Geats. Once he makes a vow, he stands by his word, no matter what the cost, even if it takes his life. He is reluctant to back down from battle, just so he can be there for the people who are in great need to be saved from evil. He signifies the true heroic character because he is willing to risk his life for his ideals. Beowulf defeats three gruesome monsters, two of whom are descendants of Cain. http://csis.pace.edu/grendel/projf981e/char.html