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Conwy Castle today

Wales · Ruin

Conwy Castle

Castell Conwy

Conwy Castle is a late 13th-century Edwardian fortress in north Wales, constructed between 1283 and 1287 as part of a new walled town. The rectangular stone castle has eight large drum towers, two barbicans and inner and outer wards, and occupies a rocky coastal ridge overlooking the River Conwy. Today the ruin is managed by Cadw and is part of the Castles and Town Walls of King Edward in Gwynedd World Heritage Site.

Photograph via Wikimedia Commons

First raised

1283

Its prime

1287

Today

Ruin

As it stood in 1287

What Conwy Castle looked like in its prime.

Rectangular late 13th-century stone castle set on a rocky coastal ridge overlooking the River Conwy, built of local grey sandstone with dressings of imported sandstone. The fortress has eight large cylindrical drum towers and two detached barbicans, linked by high curtain walls with crenellated parapets and the earliest surviving stone machicolations in Britain. A main gate through twin round towers leads into outer and inner wards; a postern gate drops down the slope to the river. Roofs are timbered in the halls.

Its story

The story of Conwy Castle.

Edward I Takes the Abbey's Ground, 1283

The ground Edward I chose was already Welsh royal ground. Aberconwy Abbey, a Cistercian house favoured by the Welsh princes, stood on the site, and with it one of their llysoedd — the court of Llywelyn the Great and, after him, of his grandson Llywelyn ap Gruffydd. A wall and an apsidal tower of it survive, swallowed into the southern end of the town's east wall and marked out from the English masonry by their four window openings. The site also commanded the crossing of the River Conwy between coastal and inland North Wales, a passage Deganwy Castle had defended for many years. English kings and Welsh princes had contested the region since the 1070s, until in 1282 Edward intervened in North Wales for the second time in his reign.

He invaded with a huge army, pushing north from Carmarthen and westwards from Montgomery and Chester, and captured Aberconwy in March 1283. He decided the place would be the centre of a new county: the monks were moved eight miles up the valley to a new house at Maenan, ruined Deganwy was abandoned and never rebuilt, and an English castle and walled town rose on the abbey's former ground. The plan was a colonial enterprise, and setting the new town on a native site of that standing was in part a symbolic act, a demonstration of English power.

Cutting the ditch began within days of the decision. Sir John Bonvillars controlled the work and the master mason James of St George oversaw it: curtain walls and towers between 1283 and 1284, interior buildings between 1284 and 1286 while the town walls were started, and by 1287 the castle was complete. Edward's accountants never separated the cost of the town walls from that of the castle; together the two came to around £15,000, a huge sum for the period.

The King Besieged, Winter 1294–95

A royal charter of 1284 made the constable of the castle mayor of the new town as well — to this day the mayor of Conwy is ex officio its constable — and put under him a garrison of thirty men, fifteen of them crossbowmen, supported by a carpenter, a chaplain, a blacksmith, an engineer and a stonemason. The first constable was Sir William de Cicon, who had held the same post at Rhuddlan before it.

In 1294 Madog ap Llywelyn rebelled against English rule, and Edward found himself shut inside his own new castle. The Welsh besieged him there from December into January 1295, and he was supplied only by sea; a postern gate ran down to a small dock on the river, and the royal apartments of the inner ward had been built so that they could be sealed off from the rest of the castle and supplied from the eastern gate almost indefinitely. Relief did not arrive until February. The chronicler Walter of Guisborough suggested that conditions were austere enough that the king refused to drink his own private supply of wine and had it shared out among the garrison instead. In 1301 the castle hosted Edward's son, the future Edward II, come to receive the homage of the Welsh leaders.

Carpenters at the Gate: Richard II and the Tudur Brothers

The castle was badly kept in the early 14th century. A survey in 1321 reported it poorly equipped and short of stores, with leaking roofs and rotten timbers, and the problems ran on until Edward the Black Prince took over control in 1343 and his chamberlain Sir John Weston carried out repairs. At the end of the century Richard II used the castle as a refuge from Henry Bolingbroke: he came to Conwy on 12 August 1399, newly returned from Ireland, and met Bolingbroke's emissary Henry Percy, who swore in the chapel that he would do the king no harm. On 19 August Richard surrendered to Percy at Flint Castle, promising to abdicate if his life were spared; he was taken to London and died later in captivity at Pontefract.

Bolingbroke took the throne as Henry IV, and rebellion broke out in North Wales under Owain Glyndŵr. On Good Friday in April 1401 two of Glyndŵr's cousins, Rhys ap Tudur and his brother Gwilym, came to Conwy passing themselves off as carpenters sent to repair the castle. Once inside they killed the two watchmen on duty and took the fortress; Welsh rebels then attacked and captured the rest of the walled town. The brothers held out for about three months before negotiating a surrender that brought them a royal pardon from Henry. Conwy was reinforced during the Wars of the Roses but played little part in the fighting, and by the 1520s and 1530s, when Henry VIII paid for restoration work, it was serving as a prison, a depot and a possible residence for visitors.

Mytton's Siege and the Stripping of the Lead, 1642–1665

Charles I sold the decayed castle to Edward Conway in 1627 for £100, and Conway's son of the same name inherited the ruin in 1631. When war broke out in 1642, John Williams, Archbishop of York, took charge of Conwy for the king and repaired and garrisoned it at his own expense. In 1645 Sir John Owen was appointed governor over his head; the two men fell into bitter dispute and the archbishop defected to Parliament. The town fell in August 1646, and in November General Thomas Mytton took the castle itself after a substantial siege.

Colonel John Carter was appointed governor and fresh repairs were made, but in 1655 the Council of State ordered the castle slighted, put beyond military use; the Bakehouse tower was probably pulled part-way down then. The restoration of Charles II in 1660 returned Conwy to Edward Conway, Earl of Conway, and five years later the earl decided to strip out the remaining iron and lead and sell it. His overseer William Milward saw the work through against the opposition of the leading citizens of the town, and it left the castle a total ruin.

By the end of the 18th century the ruins were drawing visitors and artists, and Thomas Girtin, Moses Griffith, Paul Sandby and J. M. W. Turner were among those who painted the castle. In 1865 the castle passed from the Holland family, who had leased it from the descendants of the Conways, to the civic leadership of Conwy town, and restoration began, the damaged Bakehouse tower among the first work rebuilt. Arnold Taylor carried out wide-ranging repairs and extensive research after it was leased to the Ministry of Works in 1953, and in 1986 it was declared part of the World Heritage Site of the Castles and Town Walls of King Edward in Gwynedd. UNESCO counts Conwy among the finest examples of late 13th- and early 14th-century military architecture in Europe.

Step inside

10 places to explore in 1287.

The record describes 10 distinct spots at Conwy Castle, including 3 interiors: great hall interior, private royal chambers suite, chapel. Create your own photoreal reconstruction and explore every one, more scenes means more rooms, more angles, and more of the place to stand in.

Approach from the town bridgeOuter ward courtyardInner wardMain gate through twin towersBakehouse towerPostern gate to the riverBattlements and machicolationsGreat Hall interiorPrivate royal chambers suiteChapel

Build Your Own Castle

Recreate Conwy Castle with AI to explore it.

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Castle Siege

Play Castle Siege at Conwy Castle.

A strategy game played on Conwy Castle’s real ground plan: the same surveyed walls shown in the archive below. Post your finite garrison on the battlements between assaults, then hold out as rams, siege towers, trebuchets and sappers arrive in ever-worse waves.

Sign in free to see the garrison muster. One castle costs 150 Clan Coins and is yours forever.

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Whose castle

Clans who held Conwy Castle.

The families that held Conwy Castle for a decade or more across its history, follow a name to its clan.

  • Conway

    Charles I sold the castle to Edward Conway in 1627; his son inherited it in 1631.

From the archive

Conwy Castle on paper: the measured plan and period views.

The survey plan and photographs below are the ground truth this page's reconstructions are checked against, drawn and photographed while the castle was still a working garrison. Every image is public-domain or openly licensed, with its source named.

(Castle and suspension bridge, Conway (i.e. Conwy), Wales) LOC 3752435594, Conwy Castle

(Castle and suspension bridge, Conway (i.e. Conwy), Wales) LOC 3752435594

ca. 1890-1900 · Photochrom Prints Collection (via Wikimedia Commons)

Public domain

Ground plan, Conwy Castle

Ground plan

1884 · G. T. Clark, Mediaeval Military Architecture, vol. 1 (1884)

Public domain

Questions about Conwy Castle

What is the history of Conwy Castle?

Conwy Castle began in the late 13th century as Edward I’s fortress for the conquest of Wales. It withstood Madog ap Llywelyn’s siege in 1294–95, sheltered Richard II in 1399, and was held for several months by Owain Glyndŵr’s supporters in 1401. In the Civil War it held for Charles I, surrendered in 1646, and was later slighted and stripped into ruin.

What is inside Conwy Castle?

Inside Conwy Castle are the remains of the Great Hall, chapel and private royal chambers, with the outer and inner wards still readable. The Outer Ward included service buildings such as a kitchen, brewhouse and bakehouse, and a tower used for prisoners. The Inner Ward contained the royal household rooms, a private royal chapel, a courtyard and a deep well.

Who runs Conwy Castle now?

Conwy Castle is managed by Cadw today. It is also protected as a Grade I listed building, a scheduled monument and a National Monument of Wales. Those designations describe its heritage status rather than private ownership.

Why was Conwy Castle built?

Conwy Castle was built to secure Edward I’s conquest of Wales and to anchor a new walled town. Its site controlled an important crossing point over the River Conwy, and the new town and walls replaced a high-status native Welsh religious and princely site. Later uses included refuge, garrison, prison, depot and visitor destination.

Does anyone live in Conwy Castle now?

No one is described as living in Conwy Castle now; it is a ruined castle managed by Cadw as a tourist attraction. Its royal apartments were built as a secure private suite for the king and household, but they were rarely used by the royal family. The castle’s modern role is public heritage rather than residence.

Where is Conwy Castle?

Conwy Castle is in Conwy, in North Wales. It stands on a coastal ridge above the River Conwy, beside the walled town created with the castle. The administrative area is Conwy County Borough.

When was Conwy Castle built?

Conwy Castle was built between 1283 and 1287. Work began after Edward I captured Aberconwy in March 1283, with the first phase focused on the exterior curtain walls and towers. The interior buildings followed from 1284 to 1286, and the castle was complete by 1287.

Was Conwy Castle ever attacked or besieged?

Yes, Conwy Castle was attacked and besieged several times. It withstood the siege of Madog ap Llywelyn in the winter of 1294–95. In 1401 Rhys ap Tudur and Gwilym captured it by surprise and held it for about three months, and in 1646 General Thomas Mytton took it after a substantial Civil War siege.

Which family held Conwy Castle?

The Conway family held Conwy Castle in the 17th century. Charles I sold the castle to Edward Conway in 1627, and Edward Conway’s son inherited it in 1631. The castle was later returned to Edward Conway, Earl of Conway, after the restoration of Charles II in 1660.

What did Conwy Castle look like in its prime?

In its prime, Conwy Castle was a rectangular stone fortress on a rocky coastal ridge above the River Conwy. It was built of local grey sandstone with imported sandstone dressings, with eight large cylindrical drum towers, two detached barbicans and high curtain walls. Its battlements had crenellated parapets and the earliest surviving stone machicolations in Britain.

Is Conwy Castle still standing?

Conwy Castle is still standing as a ruin. It was partially slighted by Parliament after the Civil War and became a complete ruin in 1665 when its remaining iron and lead were stripped and sold. Restoration work on the ruins began in the second half of the 19th century, including work on the damaged Bakehouse tower.

Who built Conwy Castle?

Conwy Castle was built for Edward I, with the work controlled by Sir John Bonvillars and overseen by master mason James of St. George. Edward ordered the new castle and walled town after capturing Aberconwy in 1283. The building programme used large numbers of labourers brought from across England each summer.

Can you visit Conwy Castle?

Yes, Conwy Castle can be visited as a Cadw-managed tourist attraction. It is a ruined medieval fortress, not a private home or hotel. The castle is also part of the World Heritage Site of the Castles and Town Walls of King Edward in Gwynedd.
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