To continue my musings about the cultural influences on Gwynedd – which i know most about since I live here…:)
We have the influence of the Church. Bangor was an important diocese.
From 1082-1108 the Bishop was Hervey le Breton… who obviously isn’t local.
1120-1139 David the Scot had the position, He was probably Irish but had previously live din Wurzburg.
1197-1213 Robert of Shrewsbury – an Englishman.
In this period St. Davids also frequently has foreign bishops.
So I suspect the idea of Pura Walia being some romantic backwater just isn’t true – though to reflect the poverty using armour styles a few decade solder than the period depicted might be reasonable.