The Forsworn Knight, who hung in the Business Office, is revealed to be Sir Lancelot du Lac. He becomes an aid to Ambrose.
Lancelot was one of the Knights of the Round Table. He was King Arthur's most trusted knight, and he was part of the search for the Holy Grail. Lancelot is reknowned for his betrayl of King Arthur, when he slept with Arthur's wife, Guinevere. :)