BattlefieldsSiege of Dryslwyn Castle (1287)
Medieval

Siege of Dryslwyn Castle (1287)

1287
Carmarthenshire, Wales
Era
Medieval
Battle Type
Siege
Location
Carmarthenshire, Wales
Status
Unregistered
The Combatants

Who Fought

Defeated
Rhys ap Maredudd
VS
Victor
King Edward I of England
Outcome
English victory. Dryslwyn Castle was captured by English forces after a three-week siege.
The Battle

History & Significance

Rhys ap Maredudd (c. 1250 – 2 June 1292) was a senior member of the Welsh royal house of Deheubarth, a principality of Medieval Wales. He was the great grandson of The Lord Rhys (died 1197), prince of south Wales, and the last ruler of a united Deheubarth. He is best known for his leadership of a revolt in south Wales in 1287–88 whilst King Edward I of England was away in Gascony.

Because Deheubarth fragmented after the Lord Rhys' death in 1197, Rhys ap Maredudd's father had ruled over a truncated portion of the ancient kingdom. Rhys succeeded his father in 1271 as lord of the region of Deheubarth known as the Cantref Mawr, and considered himself custodian of Dinefwr, the royal capital of Deheubarth. He ruled the Cantref Mawr from 1271, though not under the aegis of the Prince of Wales, Llywelyn ap Gruffudd, as his father had, so relations between the two men appear to have been cold. He was among the first Welsh noblemen to submit to the English crown during the Anglo-Welsh war of 1276–77, on the grounds that his claims to the lands of Maenordeilo, Mallaen, Caeo and Mabelfyw, and Dinefwr Castle – all within Deheubarth and ruled by his great-grandfather – would be properly considered. The agreement has been indicative to some historians of Rhys' ambitions to reconstitute Deheubarth as a unified kingdom within the principality of Wales.

He continued to exercise power in the Cantref Mawr after Llywelyn's death in 1282, and the execution of the last native prince of Wales, Dafydd ap Gruffudd, the following year. His failure, alone of all the noblemen of Deheubarth, to adhere to Llywelyn and Dafydd's cause in the war of 1282–3 led to king Edward I of England bestowing additional lands on Rhys for his allegiance to the English crown. Edward, however, refused to deliver to Rhys the long sought-after castle at Dinefwr. This state of affairs led Rhys to make Dryslwyn castle his main residence, and it seems likely that he embarked on a substantial building programme there in the late 1270s and early 1280s.

Rhys endeavoured to remain loyal to the English crown in the hope he may be restored to more of his former patrimony, but no such offers were forthcoming from the king – instead, Edward forced Rhys to quitclaim the castle to him in October 1283. Taking advantage of Edward’s absence in Gascony in 1287 he rebelled and led the capture of most of Ystrad Tywi, the heartland of Deheubarth, including the castles at Dinefwr and Carreg Cennen. Though the revolt was quelled by the autumn, it broke out again in November, and was only brought to a conclusion after a ten-day siege of Rhys' final stronghold, the castle at Newcastle Emlyn, in January 1288.

The ground

The ground they fought on

The site of Siege of Dryslwyn Castle (1287) lies on Arenig Rocks (Undifferentiated), bedrock that formed in the Arenigian. The rock here is mudstone, siltstone and sandstone.

Buried history

Perhaps the most arresting moment of the entire siege came not from the Welsh defenders but from English overconfidence underground. As the king's engineers drove mine workings beneath Dryslwyn's curtain walls to bring them down, a group of English knights descended to inspect the progress of the tunnelling. The mine collapsed around them, killing several on the spot. It was a sharp reminder that the methods employed to crack open a Welsh castle on its rocky hilltop carried mortal risk for those directing the assault as much as for those enduring it.

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Civil War
The Civil War fighting, garrisons and recorded militaria in this area, woven into the arc of 1642 to 1651.
Geology
The bedrock beneath the site, its age and rock type, reaching back hundreds of millions of years.
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Protected heritage nearby

Scheduled Monuments near Siege of Dryslwyn Castle (1287)

Castell Dryslwyn
Castell Dryslwyn
Scheduled monument · Medieval · ~1.3 mi

Castell Dryslwyn is a medieval castle situated on a prominent hilltop in the Towy Valley near Llandeilo in Carmarthenshire, Wales. Built in the thirteenth century, the castle served as a stronghold of the native Welsh princes of Deheubarth before passing into English hands following Edward I's co…

Natasha de Vere & Col Ford / CC BY 2.0 / Wikimedia Commons
Ffynnon-Newydd Standing Stones
Ffynnon-Newydd Standing Stones
Scheduled monument · Prehistoric · ~2.6 mi

Ffynnon-Newydd Standing Stones is a prehistoric henge monument located in Wales and protected by Cadw under reference CM042. The site lies on bedrock of Llanvirn age, composed of mudstone, siltstone and sandstone deposited during the Whiterock period. These sedimentary rocks form the geological f…

John Duckfield / CC BY-SA 2.0 / Wikimedia Commons
Grongaer
Grongaer
Scheduled monument · Prehistoric · ~2.6 mi

Grongaer is a prehistoric hillfort situated in Carmarthenshire, Wales, commanding strategic views across the surrounding landscape. The site is defined by substantial earthwork defences comprising multiple banks and ditches that encircle the hilltop, characteristic of Iron Age fortified settlemen…

George Causley / CC BY-SA 2.0 / Wikimedia Commons
Ring Cairn 120m NE of Heol Ddu
Ring Cairn 120m NE of Heol Ddu
Scheduled monument · Prehistoric · ~3 mi

Ring Cairn 120m NE of Heol Ddu is a prehistoric ring cairn situated in Wales on bedrock formed from Dinantian limestone with subordinate sandstone and argillaceous rocks. Ring cairns are ceremonial or funerary monuments constructed during the Bronze Age, comprising a ring of stones surrounding a…

John Firth / CC BY-SA 2.0 / Wikimedia Commons
Cairn 150m ESE of Garnbig
Cairn 150m ESE of Garnbig
Scheduled monument · Prehistoric · ~4 mi

Cairn 150m ESE of Garnbig is a prehistoric round cairn situated in Wales and protected as a scheduled ancient monument by Cadw under reference CM269. The monument occupies ground underlain by Dinantian limestone with subordinate sandstone and argillaceous rocks, geology that would have provided b…

Iain Macaulay / CC BY-SA 2.0 / Wikimedia Commons
Castell Dinefwr
Castell Dinefwr
Scheduled monument · Medieval · ~4.9 mi

Castell Dinefwr is a medieval castle occupying a prominent hilltop position near Llandeilo in Carmarthenshire, Wales. The site was a seat of the princes of Deheubarth from at least the twelfth century, with the surviving stone structures primarily dating from the thirteenth century when it served…

Gordon Hatton / CC BY-SA 2.0 / Wikimedia Commons
Pen y Cnap Castle
Scheduled monument · Medieval · ~1.4 miles
Allt-y-Ferin Mound and Bailey Castle
Scheduled monument · Prehistoric · ~2.1 miles
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Siege of Dryslwyn Castle, 1287 | Aubrey Research