This son of Uther Pendragon is married to Guinevere and employs Lancelot.
In one story, this man slays a rape-happy giant on the island of Mont Saint Michel before defeating Emperor Lucius.  This man was mortally wounded at a clash that began when a soldier killed an asp with his sword, the Battle of Camlann. He is conceived when his father sleeps with Igraine while disguised as Gorlois. After his fight with Mordred, this figure goes to Avalon to heal his wounds. This son of Uther Pendragon is married to Guinevere and employs Lancelot. For 10 points, name this man who pulled Excalibur from a stone and ruled from Camelot.
In one story, this man slays a rape-happy giant on the island of Mont Saint Michel before defeating Emperor Lucius.  
King Arthur