Mordred was born to King Arthur and his half-sister Morgause through the trickery and magic of Morgan Le Fey. Morgan had done a spell to make Morgause look like the woman of Aurthur's dreams and made Aurthur look like Morgauses dream man. They sleep together resulting in an evil incest child named Mordred. Morgan Le Fey took him under her wing and treated him like her son teaching him little magic but gifting him with incredible physical skills to be a great warrior. Morgan and Mordred constantly plotted against King Arthur and then declared war on him. King Arthur and Mordred battled and King Arthur killed Mordred but not before Mordred mortally wounded him. Arthur was carried to Avalon by Morgan but Mordred was left on the battle field to die.