User blog comment:Knightofthecart/Writers and producers, what did you want ?/@comment-5764349-20121230042705/@comment-5927613-20121231015855

That would've been incredibly irresponsible on their part to have not done their research beforehand. But you know, I wouldn't be surprised.

They completely made up their own version of Gwen in the show; in most of the legends, she wasn't exactly a character to be admired. She was always a noblewoman too and not a serving girl. Actually, it's often said that her affair with Lancelot is what ultimately led to the Battle of Camlann. Not at all hinted at in the show.

I don't mind that they didn't follow the legend there but for whatever reason, they felt they HAD to stick to the traditional ending at Camlann, even though they hardly followed any other parts of Arthurian folklore.