sentences:  There was no sense of a coherent tribe of people and everyone, from ruler down to slave, was defined in terms of his or her kindred family (the "tud") and individual status ("braint").Christianity had been introduced in the Roman era, and the Celtic Britons living in and near Wales were Christian throughout the era.The semi-legendary founding of Gwynedd in the fifth century was followed by internecine warfare in Wales and with the kindred Brittonic kingdoms of northern England and southern Scotland (the Hen Ogledd) and structural and linguistic divergence from the southwestern peninsula British kingdom of Dumnonia known to the Welsh as "Cernyw" prior to its eventual absorption into Wessex.