MORDRED

Mordred the Evil was the illegitimate son of King Arthur from ancient lore. At the Fall of Camelot, Mordred killed his father and the first Black Knight, Sir Percy of Scandia, before dying of his own wounds. Mordred's spirit has returned several times in the centuries since, and he served as one of the Evil Walkers helping the Netherworld invade Otherworld during Hulk comic (UK), demonstrating magical powers.

He was considered "witchbreed", retroactively identified as an early mutant in Excalibur (4th series) #23.

The death of Mordred was first seen in Marvel Super-Heroes (1st series) #17, depicting the fall of Camelot. However, his spirit returned many times over the ages, during the Crusades and into the Modern Era. He was resurrected by Krakoan standards with mystical elements in place of a Cerebro back-up, resulting in a younger reincarnation in Knights of X #1.