DNA testing have proven the long and old theory that the Welsh of Wales, the Scotish of Scotland and the Irish of Ireland are #1) all related #2)are the original inhabitants of the British Isles including England & #3) they are not endemic to Europe rather are more related to Hamitic peoples.
The Basque people of North East Spain who are trying to form there own country speak there own language and are racialy different then the Spanish. DNA tests find they are related to the Irish, Welsh & Scots and again Hamitic peoples.
The Berber people only a few miles away from Spain on mainland Africa are Hamitic and may be the source and origin of the Basque, the Welsh, the Scots, and the Irish. Berbers of the North Western tip of Mainland Africa is not far from all those locations.