Caer Gybi was a small fortlet in Roman Wales in the

Roman province The Roman provinces (, pl. ) were the administrative regions of Ancient Rome outside Roman Italy that were controlled by the Romans under the Roman Republic and later the Roman Empire. Each province was ruled by a Roman appointed as Roman g ...

of Britannia Superior. Its name in

Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...

is unknown. Today it stands at the centre of

Holyhead Holyhead (; , "Cybi's fort") is a historic port town, and is the list of Anglesey towns by population, largest town and a Community (Wales), community in the county of Isle of Anglesey, Wales. Holyhead is on Holy Island, Anglesey, Holy Island ...

in the Welsh county of

Anglesey Anglesey ( ; ) is an island off the north-west coast of Wales. It forms the bulk of the Principal areas of Wales, county known as the Isle of Anglesey, which also includes Holy Island, Anglesey, Holy Island () and some islets and Skerry, sker ...

. Caergybi (or Holyhead) is a historic port town, named after the fort. The town's English name, Holyhead, is significantly different from its name in Welsh, as is the case with many coastal parts of Wales (see

etymology Etymology ( ) is the study of the origin and evolution of words—including their constituent units of sound and meaning—across time. In the 21st century a subfield within linguistics, etymology has become a more rigorously scientific study. ...

). The fort is one of

Europe Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...

's only three-walled

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 Roman civilization *Epistle to the Romans, shortened to Romans, a letter w ...

forts. The fourth side fronted the sea and was probably the site of a

quay A wharf ( or wharfs), quay ( , also ), staith, or staithe is a structure on the shore of a harbour or on the bank of a river or canal where ships may dock to load and unload cargo or passengers. Such a structure includes one or more Berth (mo ...

. Its date is unknown, but it is generally thought to be part of a late-4th-century scheme, associated with Segontium, which was used to defend the west coast against Irish sea-raiders. The Romans also built a watch tower, within Mynydd y Twr on the top of Holyhead Mountain, which was almost certainly used as the fort's look-out point. Both were possibly abandoned around 393, when the troops were sent to respond to the revolt of Eugenius of Gaul. In the 6th century, the old fort was given to Saint Cybi, who founded a

monastery A monastery is a building or complex of buildings comprising the domestic quarters and workplaces of Monasticism, monastics, monks or nuns, whether living in Cenobitic monasticism, communities or alone (hermits). A monastery generally includes a ...

there. The Church of St Cybi still stands on the site today, with a small detached chapel ( Eglwys y Bedd) that reputedly stands over Cybi's grave.

References

External links

Holyhead Roman fortifications in Anglesey Archaeological sites in Anglesey Scheduled monuments in Anglesey Cadw Roman legionary fortresses in Wales {{Anglesey-struct-stub