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Twyn y Gregen, Llanarth

Also known as, or recorded in historical documents as;
Twyn y Cregen

In the community of Llanarth.
In the historic county of Monmouthshire.
Modern authority of Monmouthshire.
Preserved county of Gwent.

OS Map Grid Reference: SO36270966
Latitude 51.78208° Longitude -2.92518°

Twyn y Gregen, Llanarth has been described as a probable Timber Castle.

There are earthwork remains.

This site is a scheduled monument protected by law.


A mound, c.20m in diameter and 5.0m high, ditched except where it rests on steep natural slopes to the E, to the S a part of the mound has been consumed by a sand pit. Excavation in 1936 produced high quality C13 pottery, but no structural evidence. (Coflein)

The monument comprises the remains of a motte and ditch, dating to the medieval period (c. 1066 -1540 AD). The site consists of a large conical, steep-sided mound, 5m high, with a flat top. The surrounding ditch is not visible on the grounds. On the S side of the mound is a depression caused by the quarrying of the site for gravel. A brief excavation of the motte in 1936 revealed that it had been constructed by augmenting a natural mound by digging a ditch around it and raising and levelling the top. On the summit of the motte a hearth was found, together with charcoal and a reasonable assemblage of high quality medieval pottery. (Scheduling Report)

In August 2005 heavily overgrown with bramble. The mound is formed from a low ridge, is now invisible except at very close inspection but can never have been particularly prominent. In the Coflein record for Llansantffraed Court this seems to be described as a 'possible viewing platform'. Certainly high status C13 pottery may be better expalined by this being a hunting feature than by it being motte. However it is catalogued in Coflein as a motte and, therefore, record in Gatehouse as possible although I would dismiss it otherwise.
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Sources of information, references and further reading
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The bibliography owes much to various bibliographies produced by John Kenyon for the Council for British Archaeology, the Castle Studies Group and others.
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This record last updated 07/07/2016 08:52:15