The Demetae were a

Celtic Celtic, Celtics or Keltic may refer to: Language and ethnicity *pertaining to Celts, a collection of Indo-European peoples in Europe and Anatolia **Celts (modern) *Celtic languages **Proto-Celtic language * Celtic music *Celtic nations Sports Fo ...

people of

Iron Age The Iron Age is the final epoch of the three-age division of the prehistory and protohistory of humanity. It was preceded by the Stone Age (Paleolithic, Mesolithic, Neolithic) and the Bronze Age (Chalcolithic). The concept has been mostly appl ...

and

Roman Roman or Romans most often refers to: *Rome, the capital city of Italy *Ancient Rome, Roman civilization from 8th century BC to 5th century AD *Roman people, the people of ancient Rome *''Epistle to the Romans'', shortened to ''Romans'', a letter ...

period, who inhabited modern

Pembrokeshire Pembrokeshire ( ; cy, Sir Benfro ) is a Local government in Wales#Principal areas, county in the South West Wales, south-west of Wales. It is bordered by Carmarthenshire to the east, Ceredigion to the northeast, and the rest by sea. The count ...

and

Carmarthenshire Carmarthenshire ( cy, Sir Gaerfyrddin; or informally ') is a county in the south-west of Wales. The three largest towns are Llanelli, Carmarthen and Ammanford. Carmarthen is the county town and administrative centre. The county is known as ...

in south-west

Wales Wales ( cy, Cymru ) is a Countries of the United Kingdom, country that is part of the United Kingdom. It is bordered by England to the Wales–England border, east, the Irish Sea to the north and west, the Celtic Sea to the south west and the ...

, and gave their name to the county of

Dyfed Dyfed () is a preserved county in southwestern Wales. It is a mostly rural area with a coastline on the Irish Sea and the Bristol Channel. Between 1974 and 1996, Dyfed was also the name of the area's county council and the name remains in use f ...

Classical references

They are mentioned in

Ptolemy Claudius Ptolemy (; grc-gre, Πτολεμαῖος, ; la, Claudius Ptolemaeus; AD) was a mathematician, astronomer, astrologer, geographer, and music theorist, who wrote about a dozen scientific treatises, three of which were of importanc ...

's ''

Geographia The ''Geography'' ( grc-gre, Γεωγραφικὴ Ὑφήγησις, ''Geōgraphikḕ Hyphḗgēsis'', "Geographical Guidance"), also known by its Latin names as the ' and the ', is a gazetteer, an atlas, and a treatise on cartography, com ...

'', as being west of the

Silures The Silures ( , ) were a powerful and warlike tribe or tribal confederation of ancient Britain, occupying what is now south east Wales and perhaps some adjoining areas. They were bordered to the north by the Ordovices; to the east by the Dobunn ...

. He mentions two of their towns, Moridunum (modern

Carmarthen Carmarthen (, RP: ; cy, Caerfyrddin , "Merlin's fort" or "Sea-town fort") is the county town of Carmarthenshire and a community in Wales, lying on the River Towy. north of its estuary in Carmarthen Bay. The population was 14,185 in 2011, ...

) and Luentinum (identified as the

Dolaucothi Gold Mines The Dolaucothi Gold Mines (; cy, Mwynfeydd Aur Dolaucothi) (), also known as the Ogofau Gold Mine, are ancient Roman surface and underground mines located in the valley of the River Cothi, near Pumsaint, Carmarthenshire, Wales. The gold min ...

near

Pumsaint Pumsaint is a village in Carmarthenshire, Wales, halfway between Llanwrda and Lampeter on the A482 in the valley of the Afon Cothi. It forms part of the extensive estate of Dolaucothi, which is owned by the National Trust. The name is Welsh fo ...

, Carmarthenshire). They are not mentioned in

Tacitus Publius Cornelius Tacitus, known simply as Tacitus ( , ; – ), was a Roman historian and politician. Tacitus is widely regarded as one of the greatest Roman historiography, Roman historians by modern scholars. The surviving portions of his t ...

' accounts of Roman warfare in Wales, which concentrate on their neighbours the Silures and Ordovices.

Vortiporius Vortiporius or Vortipor ( owl, Guortepir, Middle Welsh ''Gwrdeber'' or ''Gwerthefyr'') was a king of Dyfed in the early to mid-6th century. He ruled over an area approximately corresponding to modern Pembrokeshire, Wales. Records from this era a ...

, "tyrant of the Demetae", is one of the kings condemned by

Gildas Gildas ( Breton: ''Gweltaz''; c. 450/500 – c. 570) — also known as Gildas the Wise or ''Gildas Sapiens'' — was a 6th-century British monk best known for his scathing religious polemic ''De Excidio et Conquestu Britanniae'', which recount ...

in his 6th century polemic ''

De Excidio et Conquestu Britanniae ''De Excidio et Conquestu Britanniae'' ( la, On the Ruin and Conquest of Britain, sometimes just ''On the Ruin of Britain'') is a work written in Latin by the 6th-century AD British cleric St Gildas. It is a sermon in three parts condemning ...

''. This probably signifies the sub-Roman

petty kingdom A petty kingdom is a monarchy, kingdom described as minor or "petty" (from the French 'petit' meaning small) by contrast to an empire or unified kingdom that either preceded or succeeded it (e.g. the Heptarchy#List of Anglo-Saxon kingdoms, numerou ...

Etymology and relationship to Dyfed

The Latinized element ''Demet'' has a clear and well attested relationship with the Welsh ''Dyfed'' (

proto-Celtic Proto-Celtic, or Common Celtic, is the ancestral proto-language of all known Celtic languages, and a descendant of Proto-Indo-European. It is not attested in writing but has been partly Linguistic reconstruction, reconstructed through the compar ...

*dametos
') and even after the imposition of the English Shire system the use of the name ''Dyfed'' for the former tribal lands continued unabated. Unsuccessful attempts were made in the 19th-century to link the etymon with the later kingdom of

Deheubarth Deheubarth (; lit. "Right-hand Part", thus "the South") was a regional name for the realms of south Wales, particularly as opposed to Gwynedd (Latin: ''Venedotia''). It is now used as a shorthand for the various realms united under the House of ...

. A more plausible relationship with the word ''defaid'' (English: sheep) was suggested by 1832 as Dyfed remained "a country fit for the pasture of sheep" and local people were noted for their cultivation of large numbers of sheep and goats from ancient times.

References

{{Celtic tribes of Wales Dyfed History of Pembrokeshire Prehistoric Wales Celtic Britons Historical Celtic peoples