My father researched this very heavily, in the late eighties and early nineties. I remember site visits to Camlad in 94, before I finished my PPL at Welshpool, nearby. He published his research in the OU history mag a long long time ago, before he passed away in 1995. He was claiming Arthur at Wroxeter, in the late eighties / early nineties and, I believe, was one of the first, if not the first historian to place Camlann at Camlad confluence, which is described in the "Dream of Rhonabwy" and fits the bill due to the roman fording point in the river Severn, only a very short distance away! He refuted some of Phillips / Keatmans later claims, especially placing Arthur's resting place as the Berth at Baschurch - a Saxon (Bassas) stronghold and enemies of Arthur! He favoured the earthwork at Hawkstone (Now the Motocross Course area), a site that would have been surrounded by water and is a large site, as legend suggests. It is also in line of sight of Wroxeter and not too far away and has the nickname, "Arthurs Kingdom"! Payne Peveril was handed the estate after 1066 and was said to "Inherit Arthur's Kingdom". It is interesting that the consensus is veering towards his conclusions. Sadly, dad died before he could really pull all of his work together into a final concise publication. I still have some of his work. May the memory of Ronald Watts live on in his work. He was a good local historian and taught me loads, especially the simple point that, just because you have evidence that fits your hypothesis, it doesn't mean that your hypothesis fits the evidence!!! He may have been totally wrong, but sadly, given the lack of evidence from the period, conjecture may be necessary to reach a conclusion.
PS: If anyone has a copy of his original publication in the OU History Magazine, I would love a photocopy as I have never seen the original work.
Something is not right. This message is just to keep things from messing up down the road