ian, (#8987),
Thanks for useful link:
...DNA testing has also revealed how the people of Yorkshire are officially the most British people in the land, with their genetic makeup containing an average 41 per cent Anglo-Saxon stock...
Much input from the Vikings (as you know, York was a Viking settlement). They were over here a thousand years ago, sacking, burning, pillaging and raping (did the local blood stock no end of good). All place names ending "-by" are witness to their spread.
...while the people of Wales have the highest proportion of ancestry from Spain and Portugal...
We have the Spanish Armada to thank for this !
...the Armada was disrupted during severe storms in the North Atlantic and a large number of the vessels were wrecked on the coasts of Scotland and Ireland...
Wiki]
With a West-facing coastline, I would think Wales got its share. The survivors struggled ashore, same long term result as before!
Danny.