For 10 points, name this traitor from Arthurian legend, commonly held to be the incestuous son of Arthur and Morgause.
Two of this figure's sons were killed by a king in front of altars, angering some gods who then caused that king to be killed by his nephew Aurelius Conanus some years later. This man delivers the killing blow to Lamorak, son of King Pellinore. In one account, this figure survived his most well known encounter and instead died of starvation, but not before eating the dead body of Guinevere. All the noble children (*) born on this figure's birthday were set adrift to sea, but this figure survived a shipwreck and was fostered by Nabur. During Arthur's absence, this man seized the throne as well as Guinevere, prompting Arthur to return and fight him at the Battle of Camlann. For 10 points, name this traitor from Arthurian legend, commonly held to be the incestuous son of Arthur and Morgause.
Two of this figure's sons were killed by a king in front of altars, angering some gods who then caused that king to be killed by his nephew Aurelius Conanus some years later.
Mordred