User blog comment:Fimber/Things that went wrong in "The Death Song of Uther Pendragon"/@comment-7285162-20130415005522/@comment-5674726-20130428004452

''I'm sorry to say that the thing about Morgause isn't true either. She was several years older than Arthur, therefore the Great Purge/hatred for magic hadn't started yet - plus, it wasn't said that Uther wanted her dead as a baby but only that he was "led to believe" that she had died. He had no reason to want her death at that point of time. I don't know what they had originally planned when they made Uther say that he thought she died as a child/baby and when Gaius smuggled her out but it certainly can't have anything to do with the Great Purge since Morgause wasn't the same age or even younger than Arthur but older. It probably hasn't even to do with Uther and we don't even know if Uther was king already at that point of time.''

Had Vivienne not been a non-entity of a character, notable only for getting lonely while her husband was away fighting for King and country, and had they not had Gaius refer to Morgause as Morgana's half-sister before he knew that she was Uther's, they could have had Morgause as the first child of Vivienne and Gorlois, smuggled to the Isle of the Blessed as a baby because Vivienne wanted her raised by the priestesses and knew that Gorlois wouldn't approve. As far as he and Uther were concerned, Morgause died in infancy and Uther would have been understandably ticked off to learn what had actually happened to her.