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Cof Cymru: National Historic Assets of Wales · Wales

Coed y Cwm 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)
51.45460, -3.32149
SAM number
GM117
Cadw record number
2246

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 site is situated on flat ground overlooking a small valley to the north-east, in a wood. It consists of a circular bank with external ditch. The interior is flat. On the north and west sides the ditch is 2m wide, with a flat bottom, and 1m high externally, 1.5 m high internally. There is no bank outside the ditch, and the bank on the inside is c. 0.5 m high. On the west side is a causeway 6 m wide across the ditch. On the south side the bank is higher - 2 m high externally and 0.7 m internally. On the east side the ground outside the ringwork slopes away to the valley, and there is a bank outside the ditch 5 m wide and 1 m high, with a berm outside it 1.5 m wide and 0.6 m high. The main bank is 2 m high externally and 0.6 m high internally along this side. The external bank stops at the north end where the ringwork curves around to the west, away from the slope. Half-way along the east side is a narrow gap, 1 m wide, through both banks.

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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