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Cof Cymru: National Historic Assets of Wales · Wales

Cottrell Ringwork

St. Nicholas and Bonvilston, Vale of Glamorgan, Wales

The record

Designation
Scheduled monument
Site type
Ringwork
Period
Medieval
Community
St. Nicholas and Bonvilston
Unitary authority
Vale of Glamorgan
Country
Wales
Coordinates (centre of the scheduled area)
51.46403, -3.31897
SAM number
GM096
Cadw record number
2244

Slide toward Today to fade the historical sheet and see the modern map underneath.

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 comprises the remains of a well preserved castle-ringwork which dates to the medieval period (c. AD 1066 - 1485). The ringwork stands on the summit of a small hill, with panoramic views all round. The ground falls away on all sides, but less steeply to the south. The site consists of a flat-topped mound 2-2.5m high, with a discontinuous external ditch. The sides of the mound and the ditch are steep. The top of the mound is flat and 48m in diameter. There is no bank on the perimeter to the north, and a negligible one on the east. On the east and north-east it is c. 1m high. On the south side the bank is c. 2m high, with a 2m wide gap in the middle which connects a causeway of similar width across the ditch. A trig point stands on the south bank.

On the exterior, on the north side, it is 2.5m high and there is no ditch. On the north-east side a ditch appears, c. 2m wide and 1m deep. The ditch continues for a bit along the east side and then stops. The side of the mound is 2.2m high on this side. On the south side the ditch begins again, 2m wide and 1.5m deep. The side is 2.5m high. In the middle of this side a 2m wide causeway crosses the ditch. West of the causeway the ditch is at its deepest and steepest: 1.8m high on the outside, with the side of the mound 2.8m high. On the west side the mound is 2.2m high and the ditch continues but becomes much shallower: 1.5m wide and 0.5m deep.

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.

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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