User blog comment:OneofthePendragon94/The age of Merlin, Arthur, Morgana and Gwen./@comment-5515850-20121114120925

I think you're right with Arthur. However, I disagree with you with Morgana. I think Morgana was the result of a temporary relationship between Uther and Vivienne before Arthur was born, as I think Uther might have done it when he was young and foolish, and before Ygraine's death hardened him. Merlin is probably that age that you suggested, as it would make sense, and in the case of Gwen I think you're right as well. :)