During the Norman and Plantagenet periods, only Wales (or parts thereof) remained under Brittonic rule in Britain and the term "Britons" (Brythoniaid, Britaniaid, Brutaniaid) was used in Britain to mean the Welsh people (Cymry in modern Welsh).
In medieval Britain, during the Norman and Plantagenet eras, only Wales retained its Brittonic rule, while the term "Britons" was used to describe the Welsh population (Cymry in contemporary Welsh).