Wheldon was the Hero who wielded the legendary sword The Avenger.
The description on the sword gives a brief history about the hero's life:
This mystical weapon belonged to Wheldon, a Hero whose family and home were ripped to pieces by demonic creatures. Wheldon made a bargain with a necromancer: he would trade his life for a Sword strong enough to kill every last one of those beings. The Hero's heart was placed in the center of the blade, and when his revenge was complete it became part of the steel, as Wheldon's lifeless body fell to the ground.