BattlefieldsSiege of Carmarthen 1644
English Civil War

Siege of Carmarthen 1644

1644
Carmarthenshire, Wales
Era
English Civil War
Battle Type
Siege
Location
Carmarthenshire, Wales
Status
Unregistered
The Battle

History & Significance

Harlech Castle in Harlech, Gwynedd, Wales, is a Grade I listed medieval fortification built onto a rocky knoll close to the Irish Sea. It was built by Edward I during his invasion of Wales between 1282 and 1289 at the relatively modest cost of £8,190. Over the next few centuries, the castle played an important part in several wars, withstanding the siege of Madog ap Llywelyn between 1294 and 1295, but falling to Prince Owain Glyndŵr in 1404. It then became Glyndŵr's residence and military headquarters for the remainder of the uprising until being recaptured by English forces in 1409. During the 15th-century Wars of the Roses, Harlech was held by the Lancastrians for seven years, before Yorkist troops forced its surrender in 1468, a siege memorialised in the song "Men of Harlech". Following the outbreak of the English Civil War in 1642, the castle was held by forces loyal to Charles I, holding out until 1647 when it became the last fortification to surrender to the Parliamentary armies. In the 21st century the ruined castle is managed by Cadw, the Welsh Government's historic environment service, as a tourist attraction, and since 2024 under its Welsh name only.

UNESCO considers Harlech, with three others at Beaumaris, Conwy and Caernarfon, to be one of "the finest examples of late 13th century and early 14th century military architecture in Europe", and it is classed as a World Heritage Site. The fortification is built of local stone and concentric in design, featuring a massive gatehouse that probably once provided high-status accommodation for the castle constable and visiting dignitaries. The sea originally came much closer to Harlech than in modern times, and a water-gate and a long flight of steps leads down from the castle to the former shore, which allowed the castle to be resupplied by sea during sieges. In keeping with Edward's other castles in the north of Wales, the architecture of Harlech has close links to that found in the County of Savoy during the same period, an influence probably derived from the Savoy origins of the main architect, James of Saint George.

In local mythology, the site of Harlech Castle in North Wales is associated with the legend of Branwen, a Welsh princess, but there is no evidence for a native Welsh fortification having been built there. The kings of England and the Welsh princes had vied for control of North Wales since the 1070s and the conflict was renewed during the 13th century, leading to Edward I intervening in North Wales for the second time during his reign in 1282. Edward invaded with a huge army, pushing north from Carmarthen and westwards from Montgomery and Chester. English forces advanced down the Conwy valley and through Dolwyddelan and Castell y Bere, onto Harlech, which Sir Otton de Grandson took with 560 infantry in May.

The ground

The ground they fought on

The site of Siege of Carmarthen 1644 lies on Arenig Rocks (Undifferentiated), bedrock that formed in the Arenigian. The rock here is mudstone, siltstone and sandstone.

Buried history

No specific sourced detail about this siege is available from the provided material.

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Overview
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Monuments
The legally protected scheduled monuments around the location, each with its period, type and significance.
Battlefields
The battles and sieges fought on this ground, mapped and set on a timeline of the wider conflict.
Roman Britain
The Roman roads, forts and towns near here, and the Iron Age people who held the land before Rome arrived.
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.
Local Names
What the street and field names around here actually mean, and the history buried inside them.
Historical Maps
Ordnance Survey maps from the 1800s, layered over the location as it stands today.
Literature
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Protected heritage nearby

Scheduled Monuments near Siege of Carmarthen 1644

Carmarthen Roman Town (part of)
Carmarthen Roman Town (part of)
Scheduled monument · Roman · ~0.3 mi

Carmarthen Roman Town is a Roman settlement established in south-west Wales, occupying a strategic location above bedrock of Arenig rocks composed of mudstone, siltstone and sandstone. The underlying geology provided stable ground suitable for permanent military and civilian occupation during the…

nick macneill / CC BY-SA 2.0 / Wikimedia Commons
Carmarthen Castle
Carmarthen Castle
Scheduled monument · Medieval · ~0.3 mi

Carmarthen Castle is a medieval fortress founded in the late eleventh century, established by the Norman conqueror Rhys ap Tewdwr or his successors as part of the consolidation of Norman power in South Wales. The castle occupies a commanding position on a motte overlooking the River Tywi and the…

Ian S / CC BY-SA 2.0 / Wikimedia Commons
Carmarthen Roman Fort (part of)
Carmarthen Roman Fort (part of)
Scheduled monument · Roman · ~0.4 mi

Carmarthen Roman Fort is a Roman military installation in Wales, protected as a scheduled monument by Cadw. The fort sits upon bedrock formed from Arenig mudstone, siltstone and sandstone, deposits laid down during the Arenigian geological period. This foundation of hard, stratified rock provided…

Gerald England / CC BY-SA 2.0 / Wikimedia Commons
The Bulwarks (Civil War)
The Bulwarks (Civil War)
Scheduled monument · Post Medieval/Modern · ~0.4 mi

The Bulwarks is a post-medieval earthwork fortification located in Wales and protected by Cadw under reference CM009. Constructed during the English Civil War period, it represents a practical military response to the conflict that divided the nation in the mid-seventeenth century. The site sits…

chris whitehouse / CC BY-SA 2.0 / Wikimedia Commons
Carmarthen Roman Town Defences (part of)
Carmarthen Roman Town Defences (part of)
Scheduled monument · Roman · ~0.5 mi

Carmarthen Roman Town Defences is a Roman town defences structure protected by Cadw under reference CM243. The site lies in Wales where the underlying bedrock comprises Arenig Rocks of Arenigian age, composed of mudstone, siltstone and sandstone. These sedimentary deposits, formed over 470 millio…

Adrian Dust / CC BY-SA 2.0 / Wikimedia Commons
St John's Priory
St John's Priory
Scheduled monument · Medieval · ~0.5 mi

St John's Priory is a medieval priory located in Wales and protected by Cadw as a scheduled monument under reference CM236. The priory stands upon bedrock of Arenig Rocks, composed of mudstone, siltstone and sandstone laid down during the Arenigian period of the Ordovician, which provides a firm…

Adrian Dust / CC BY-SA 2.0 / Wikimedia Commons
Trebersed Moated Site
Scheduled monument · Medieval · ~1.7 miles
Garn-Fawr Castle Mound
Scheduled monument · Medieval · ~2.2 miles
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