User blog comment:Cillemaller the Witch/Is Gorlois Morgause´s father?/@comment-84.60.101.82-20120515084142/@comment-121.45.177.17-20120515090711

Mind you though, Gaius didn't know that Uther that was Morgana's father until Uther was forced to reveal to him. Perhaps he didn't know that Vivienne was Morgana's mother as she disappeared shortly after Morgana was born (thought) so he only thought that Gorlois was Morgana and Morgause's parent.