Board Thread:Questions and Answers/@comment-184.88.25.24-20131112235645/@comment-24614146-20140309000345

From what I found and read on the internet my belive is that Morgana is older then Arthur with at least 2 years. This and the rule of the first born succession to the throne is the reason why Uther hide from everyone (Morgana included) the fact that he is Morgana father. Remember, he told Gaius that Morgana is his daughter only when Morgana was almost dead. Season 3 - ep. 5 "The Crystal Cave".