“At Weisshaupt fortress in the desolate Anderfels, a meeting transpired. Soldiers of the Imperium, seasoned veterans who had known nothing their entire lifetimes except hopeless war, came together. When they left Weisshaupt, they had renounced their oaths to the Imperium. They were soldiers no longer: They were the Grey Wardens.”
Dragon Age Origins – Codex entry: The Grey Wardens