User blog comment:Chawk1993/Morgana's family/@comment-3325613-20111028114858

I actually don't think that Vivienne is Igraine's sister. I think someone believed that and wrote it on the page. I also believe that Morgana didn't know Igraine. She's older than Arthur but when Igraine died she still was with Gorlois. Viviane is probably dead too, because when Uther begun the Great Purge he decided to kill her (she's likely to have been a witch), also to definitively hide who Morgana really was.