The Celtic nations of Ireland, Wales, Cornwall, and Brittany share a common Celtic cultural and linguistic heritage. While there is evidence to suggest that there were pre-Roman Celtic peoples in these regions, the exact ancestry of these peoples is not well understood and is subject to ongoing research and debate among scholars.
Some historians and linguists suggest that the pre-Roman peoples of these regions spoke a common Celtic language and shared cultural practices, which may indicate a shared ancestry. However, there is also evidence to suggest that there were significant regional variations within the Celtic cultures of these regions, which may indicate separate and distinct ancestral origins.
Ultimately, the question of a common pre-Roman ancestor for the Celtic nations of Ireland, Wales, Cornwall, and Brittany remains a complex and contentious issue that is still being studied and debated by scholars in the fields of history, archaeology, and linguistics.
