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Dinham Castle

Also known as, or recorded in historical documents as;

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

OS Map Grid Reference: ST48029234
Latitude 51.62754° Longitude -2.75215°

Dinham Castle has been described as a probable Masonry Castle.

There are masonry ruins/remnants remains.

This site is a scheduled monument protected by law.


A collection of stone building remains and enclosures resting above the slopes of a combe to the west, set in and around a round-ended walled enclosure, some 58m east-west by 28m: some of the remains have been interpreted as being those of a tower, however there is nothing in the site plan to suggest a castle. (RCAHMW)

The ruins of a small, square keep, similar to that at Penhow Castle, and other walls, assigned to the C13, within a wood. (Newman)

The monument consists of the remains of a castle, dating to the medieval period. The castle is situated in woodland on the E side of a small valley with a steep drop to the valley bottom on the W and S sides. On the N side, below the castle, is a wide shallow ditch 0.5m deep, which runs NW down the slope. On parts of the inners side low footings of a wall are visible. The castle itself is situated on the top of the slope to the W and S, 3m above the ditch. At the N end of the site are the remains of a rectangular stone-built building measuring 14m N/S by 7m, containing two rooms. To the S of the rectangular building is a T-shaped wall standing up to 1.8m high. This is rubble-built and has been spread. On the S side of the wall is a level platform, and on the S side of the platform are the remains of a second rectangular structure. On the E side of the site are faint traces of a bank. The history of the site is obscure, although it is known that there was a church on this location in the 12th century. (Scheduling Report)

Gatehouse thanks Guy Hamilton for pointing out a previous erroneous description of this site and the error in the Castles of Wales site description.
Phillips records the site as entirely overgrown, but that the history suggests a small masonry castle or tower 'built to ensure the rights of the forest' of Wentwood. No evidence of an earlier timber castle.
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Sources of information, references and further reading
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This record last updated 07/07/2016 08:23:33