In old English legend, Colbronde (or Colbrand) was a Danish giant who hounded the English people and collected tribute who was subsequently killed by Sir Guy of Warwick. Whether or not Colbronde actually existed, the symbolism and veneration of the fight in English folklore suggests that the battle between Guy and the giant was based on an actual historical event of some sort.
In Chaucer's poem, he is described as being so mighty and large with his armor on that no horse can carry him, and he marches onto the field on foot to square off against Guy. He strikes Guy so hard he breaks his shield, but Guy returns with his own pounding blow, cracking open the giant's armor at the shoulder and driving his sword into his chest. Even in his dying throes, Colbronde again strikes out against Guy, but the legendary swordsman takes the blow on his helmet and then finishes the job.
Colbronde (along with his killer) also makes a brief appearance in William Shakespeare's Henry VIII (Act V, Scene 2):
I am not Samson, nor Sir Guy, nor Colbrand,
To mowem down before me.