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Cof Cymru: National Historic Assets of Wales · Wales

Llanblethian Castle

Cowbridge with Llanblethian, Vale of Glamorgan, Wales

The record

Designation
Scheduled monument
Site type
Castle
Period
Medieval
Welsh name
Castell Llanfleiddan
Community
Cowbridge with Llanblethian
Unitary authority
Vale of Glamorgan
Country
Wales
Coordinates (centre of the scheduled area)
51.45744, -3.45651
SAM number
GM094
Cadw record number
3389

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David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1636 "Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ..." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

The following provides a general description of the Scheduled Ancient Monument.

The monument consists of the remains of a castle dating to the medieval period. Llanblethian (aka St Quintin's) comprises a large courtyard castle. The massive twin-towered gatehouse and high stretch of curtain wall on the north side are the main remnants. A ruinous low wall surrounds the rectilinear ward to the west. In the centre is a mound with the shell of a thick-walled building possibly an earlier keep on it. The gatehouse and curtain wall are thought to be early 14th century, built by Gilbert de Clare (the Last, d. 1314).

The monument is of national importance for its potential to enhance our knowledge of medieval defensive practices. The monument is well-preserved and an important relic of the medieval landscape. It retains significant archaeological potential, with a strong probability of the presence of both structural evidence and intact associated deposits.

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

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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