Later, the area became known to the English of neighbouring Wessex as the kingdom of West Wales, and its inhabitants were also known to them as Defnas (i.e. men of Dumnonia).
Posteriormente, a área empezou a ser coñecida polos anglos do veciño Wessex como o reino de Gales Occidental, e chamaron ós seus habitantes “Defnas” (xente de Dumnonia).