User blog comment:The Spie/Head-Canon Volume I: England/@comment-1616397-20090926212622

You know, if I wanted to upset you Brits (and you are British from your IP), I would have said that Northern Ireland isn't related to Ireland at all. If you look carefully, I said that, genetically, I'm not sure, but family-wise, NI is Ireland's adopted nephew, with Scotland, Ireland's brother, being the de facto adoptive father. That seems to be a fair assessment in Hetalia terms of the colonization of Ulster during James I's reign and the Flight of the Earls.

I think you need to bone up on the history of your own country. The Anglo-Saxons didn't arrive in the 9th Century. They arrived beginning in the middle of the 5th Century (look up the names Hengest and Horsa). By the end of the 6th Century, Kent was already established, Mercia was founded, and Bernicia and Deira were well on their way to becoming Northumbria, and as for Arthur/Wessex, the founding date of Wessex is sometime in the 520s or 530s.

I used poetic license to have Arthur introduced to Christianity by Wales. Wales would have been a Celtic Christian. When Wessex was converted, it was to Roman Christianity, specifically by Birinus beginning around 634. Kent was the first Anglo-Saxon kingdom to be converted, starting in 595, also to Roman Christianity. Northumbria became a Celtic Christian kingdom due to Oswald and Oswy, who'd been raised in exile on Iona, then accepted Roman Christianity at the Synod of Whitby. Of course, Roman Britain was nominally Christian after Constantine made Christianity the religion of the Empire, but that doesn't count here. We're talking Anglo-Saxon period only, since Arthur is a Saxon. What does that mean? Arthur wasn't a pagan for as long as you think.

So where and when did he learn magic? How does John Dee strike your fancy?

The facts do support my head-canon of Arthur being Wessex before becoming England (he probably started to refer to himself as such during Athelstan's reign).