Ancient Monuments

History on the Ground

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Castell Gwynionydd

A Scheduled Monument in Llandysul, Ceredigion

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Latitude: 52.0543 / 52°3'15"N

Longitude: -4.3003 / 4°18'0"W

OS Eastings: 242378

OS Northings: 242039

OS Grid: SN423420

Mapcode National: GBR DG.DQ0W

Mapcode Global: VH3KJ.DMZK

Entry Name: Castell Gwynionydd

Scheduled Date: 8 December 1948

Source: Cadw

Source ID: 1831

Cadw Legacy ID: CD018

Schedule Class: Defence

Category: Ringwork

Period: Medieval

County: Ceredigion

Community: Llandysul

Traditional County: Cardiganshire


The monument comprises the remains of a well preserved castle-ringwork, which dates to the early part of the medieval period (c. AD 1066 - 1485). Castell Gwynionydd covers an area of c 0.8ha on the edge of a scarp above a river valley, though the river channel has since moved away from its base. The site occupies a slight natural promontory defended by a semi-circular bank and ditch from higher ground on the north and west, while a natural steep slope bounds the site on the south-east; a slight bank runs along the cliff-top on this south-eastern side too, but this is not necessarily ancient. The bank and ditch are well-preserved and impressive, the bank being c.5m high externally and 2-3m high internally, while the ditch is c.2m deep. The line of the ditch continues down the scarp on the east of the site and traces of a dam are present at the top. Traces of a possible causeway across the ditch at the north-west may indicate the position of an entrance.

The monument is of national importance for its potential to enhance our knowledge of medieval settlement, organisation and defence. The site forms an important element within the wider medieval landscape. It is well preserved and retains considerable archaeological potential. There is a strong probability of the presence of evidence relating to chronology, layout, building techniques and functional detail.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Source: Cadw

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