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Dryslwyn Castle

Also known as, or recorded in historical documents as;
Drusselan; Deresloyn; Droslan; Drosselan; Dyryslwyn; Drysllwyn

In the community of Llangathen.
In the historic county of Carmarthenshire.
Modern authority of Carmarthenshire.
Preserved county of Dyfed.

OS Map Grid Reference: SN55402035
Latitude 51.86247° Longitude -4.10129°

Dryslwyn Castle has been described as a certain Masonry Castle.

There are masonry ruins/remnants remains.

This site is a scheduled monument protected by law.
This is a Grade 1 listed building protected by law*.

Description

The shattered ruins of a medieval castle crown the ultimate summit of a dramatically isolated and abrupt hill rising from the Tywi floodplain. The castle was founded by a local Welsh prince in the second quarter of the thirteenth century. It was twice expanded before, in 1287, it was captured for the English crown after a desperate and famous siege. A walled borough was now added on the lower summit of the hill (see NPRN 109584) and the castle itself was modified and repaired throughout the following century. The castle was decommissioned in the early fifteenth century and decayed thereafter. It has recently been excavated and the remains are consolidated for public display.
The earliest castle consisted of a great round tower and a princely mansion set in a strongly walled court. In the later thirteenth century two further walled courts were added on the north-east slopes reaching down to the borough on the lower summit. The most dramatic remaining feature is the outer facade of the great appartments. Otherwise the castle is mostly reduced to footings. (Coflein–Rees & Caple CADW Guide to Dinefwr Castle & Dryslwyn Castle, revised edition (2007))

On high ground overlooking the Tywi Valley, to the E of the B4297 and on the N side of the river.
Dryslwyn castle was built by Rhys Grug, one of the sons of the Lord Rhys who contested the succession to the kingdom of Deheubarth following their father's death in 1197. When the dispute was settled in 1216 Rhys Grug was given Ystrad Tywi, the south-east part of the kingdom, which included the ancient royal seat of Dinefwr. Rhys Grug built Dryslwyn Castle, occupying a commanding position overlooking the Tywi valley, in the 1220s. The earliest phase comprised a round keep with adjacent gateway, and a sub-triangular ward containing a great hall and other buildings. The castle passed to Maredudd ap Rhys in 1233, who built a second hall at right angles to the original, and added a second ward on the NE side, now known as the middle ward. During this period Maredudd made Dryslwyn the headquarters from where he ruled his now divided lands in Ystrad Tywi. After Dryslwyn was inherited in 1271 by Rhys ap Maredudd it underwent further extension, perhaps after the war of 1282-3 when Edward I rewarded Rhys'''' loyalty to the English crown with further territory. Within the original, inner ward, an apartment block and chapel were added and the gatehouse was rebuilt. An outer ward was also added. A substantial settlement had by this time grown up on the N side of the castle, which was itself the largest castle in Wales built by a Welsh lord. In 1287 Rhys ap Maredudd revolted against the administration of crown lands in south-west Wales and after a three-week siege the castle was taken by Earl Edmund of Cornwall, the king''''s cousin. Rhys fled but was captured and executed in 1292. Thereafter the castle was repaired and was in the custody of a constable of the crown. During the C14 it lost its importance as Carmarthen emerged as the major centre of authority in the region and it was increasingly neglected. Dryslwyn was captured in 1403 by Owain Glyndwr, and remained in rebel hands for some 3 years before the crown''s authority was re-established. Dryslwyn appears to have been subsequently abandoned and was probably largely demolished to prevent its future use by hostile forces.
A ruined castle of limestone rubble walls. The chief upstanding remains are within the inner ward to the SW, which has a polygonal plan dictated by the shape of the hilltop. To the NE are more scant remains of the middle and outer wards. The original curtain wall of the early C13 inner ward survives at no more than 1m high, while on the E side part of the curtain wall was remodelled in the late C13, and incorporates a garderobe reached up stone steps and with 2 shafts. At the NE corner is the remodelled gatehouse of the C13, in which steps to a wall walk have partially survived. The gatehouse survives at foundation level only, but the portcullis slot remains visible and the passage is cobbled. Attached on the S side of the gatehouse, and E side of the curtain wall, is the round tower, the original keep that occupies the highest ground. It was originally entered at first floor level from external steps built above a broad NW buttress. A doorway with segmental stone head, opening to the undercroft, is a later insertion. On the S side, directly overlooking the Tywi valley, is a projecting chapel on the E side. The chapel was at first-floor level where there are the remains of 3 lancet windows, and was entered below through a postern gate in the original curtain wall. On the W side is the battered wall, with return at the W end, of a former 2-storey apartment block, built outside the line of the original curtain wall. It has 2 pointed windows in the lower storey and the jamb and embrasure of a third, while in the upper storey a single similar opening survives with the jamb and embrasure of a second opening. Within the inner ward are the foundations of the original great hall and of Maredudd''''s mid C13 hall at right angles on its E side. The original great hall survives at basement level and has a segmental-headed doorway in the N wall, with former narrow window to its L, and in the centre the stone foundation of the hall fireplace. The outline of a small prison is on the N side of the great hall. Of the middle and outer walls there is only a small amount of masonry visible, mainly associated with the middle and outer gates. In the outer ward masonry of the NE gatehouse includes stone steps to a former wall walk. (Listed Building Report)
Links to archaeological and architectural databases, mapping and other online resources

Data >
Coflein   County HER       Listing   Historic Wales
Maps >
OS getamap   Streetmap   Old-Maps   Where's the path   NLS maps  
Data/Maps > 
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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.
Suggestions for finding online and/or hard copies of bibliographical sources can be seen at this link.
Minor archaeological investigations, such as watching brief reports, and some other 'grey' literature is most likely to be held by H.E.R.s but is often poorly referenced and is unlikely to be recorded here, or elsewhere, but some suggestions can be found here.
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*The listed building may not be the actual medieval building, but a building on the site of, or incorporating fragments of the described site.

This record last updated on Saturday, July 26, 2014


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