Board Thread:Questions and Answers/@comment-184.88.25.24-20131112235645/@comment-24492510-20141106193615

ReganX wrote:

I'd say that Merlin is no more than two years Arthur's junior, give or take a few months, given that their interactions early on. Arthur was quite a prat in those days, and I could see him being rather condescending towards Merlin about his youth if their age gap was any wider than that. Also, Balinor seems to have gone straight from Camelot to Ealdor, so would he have stayed in the house of a single woman for an extended period without marrying her? I'd say that capturing him was high on Uther's list of priorities so he may not have been able to stay in Ealdor long. I don't think the randomly changed the description from "young boy" to "young man", so he was certainly at least 2 and a hal years older than him. Anyway, Balinor straight from Camelot to Ealador after the end of the Great Purge, so 11 months (Great Purge) + travel from Camelot to Ealador (1 month?) + 9 months... Merlin is at least 21 months younger than Arthur, so all joins.

I assumed that Merlin is only 2 and a half years younger than Arthur, because I don't think Morgana is more of 2 years older than him.