User blog comment:OneofthePendragon94/The age of Merlin, Arthur, Morgana and Gwen./@comment-24492510-20141107163944

"I know for a fact Arthur was twenty years old in season one as every time they mention the great purge, they said “ twenty years ago”,"

We shouldn't immediately say this, because Uther said that the Great Purge lasted 20 years ago and we don't know how much time the purge lasted. Actually, in episode 9, Arthur comes of age (and legal age was 21 in medieval times), so we can assume that the Great Purge lasted around 11 months.

Merlin was certainly younger than Arthur, because Balino and Hunit met after the end of the Great Purge (11 months). Merlin was born at least 20 months (11 months + 9 months) after Arthur. Also, his description was changed from "young boy" to "young man" in Series 4. This could indicate that he wasn't still 21 in Series 1-3 and was at least 21 in Series 4. So, he is at least 2 and a half years younger than Arthur and not more than 3 and a half younger than him.

I’m sure Morgana is younger than Arthur; many people said she is older, b ut sh e is not. Think about it, in season one episode one, Uther told Morgana she “ was not here twenty years ago”  which mean she was obviously not born yet, s o I guess she was around eighteen or nineteen, I think it’s eighteen but I’m not sure.



This is not an evidence about her age. Morgana went to Camelot when she was 10, so Uther could indicate that she was not in Camelot. But we know that Morgana is really younger than Arthur, because of the first episode script. Since she slightly younger than Arthur, I assumed that she is 18-19 in the first Series (so Merlin is 18).

And as for Guinevere/Gwen, I think she may be the youngest of them all, in season one I think she was sixteen or seventeen. But I don’t really know XD

There are not proofs about her age. However her actress is 28 in Series 1 (2008)... I don't think that a 28 years old woman can play a 16-17 years old girl... I think that sje is 22-23 in Series 1.