Clan Rising
King John's Castle today

Ireland · Partial ruin

King John's Castle

Caisleán Rí Eoin

King John's Castle (Carlingford Castle) is a medieval D-shaped enclosure castle standing on the harbour at Carlingford, County Louth, Ireland. Built from the late 12th century with an east wing added in the 13th century, it features thick stone curtain walls, a west gatehouse with a square flanking tower, and a large rectangular hall in the east wing. It is a designated National Monument.

Photograph via Wikimedia Commons

Its prime

1261

Today

Partial ruin

As it stood in 1261

What King John's Castle looked like in its prime.

A D-shaped, grey-brown stone enclosure castle sited on a low rocky headland at the harbour edge, with massive curtain walls roughly 3.4 m thick. The west wing shows the remains of a gatehouse and a square flanking tower; the east wing contains the ruinous shell of a large rectangular two-storey hall above a basement. The curtain wall is pierced by deep embrasures and narrow arrow-slits; roofs are absent and the silhouette is a ragged line of broken battlements and tall arched openings above a quay and modern harbour buildings.

Its story

The story of King John's Castle.

The west wing of Carlingford Castle was built in the late 12th century by Hugh de Lacy, Lord of Meath, shortly after the Norman invasion of Ireland. It acquired the name "King John's Castle" after King John, Lord of Ireland, supposedly stayed there for three days in 1210, during the expedition in which he invaded Ulster to apprehend Hugh de Lacy, 1st Earl of Ulster.

The castle is a D-shaped enclosure with walls 3.4 metres thick, its western curtain holding a gatehouse, a square flanking tower and deep embrasures with narrow arrowslits; the 13th-century east wing contains a large rectangular hall of two main floors over a basement.

War returned in the 17th century. During the Irish Confederate Wars the castle was held by the Irish Catholic Confederation, then taken in turn by Sir Henry Tichborne in 1642, Murrough O'Brien, 1st Earl of Inchiquin in 1649 and Charles Coote, 1st Earl of Mountrath in 1650. In the Williamite War it was fired on by Jacobites in 1689 and used as a Williamite hospital by the Duke of Schomberg before the Battle of the Boyne. It is now a National Monument.

Step inside

8 places to explore in 1261.

The record describes 8 distinct spots at King John's Castle, including 2 interiors: east wing great hall (interior), basement under the east hall. Create your own photoreal reconstruction and explore every one, more scenes means more rooms, more angles, and more of the place to stand in.

Harbour quay approachWest gatehouse and curtain wall (exterior)Square flanking tower (exterior)Top of curtain wall and embrasuresEast wing great hall (interior)Basement under the east hallInner bailey / courtyardSeaward façade seen from the water

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Whose castle

Clans who held King John's Castle.

The families that held King John's Castle for a decade or more across its history, follow a name to its clan.

  • de Lacy

    Built in the late 12th century by Hugh de Lacy, Lord of Meath, after the Norman invasion of Ireland.

Questions about King John's Castle

What is the history of King John's Castle?

King John's Castle was built in the late 12th century by Hugh de Lacy, Lord of Meath, shortly after the Norman invasion of Ireland. Its east wing was added in the 13th century. It later changed hands during the Irish Confederate Wars, was fired on by Jacobites in 1689, and served as a Williamite hospital before the Battle of the Boyne.

What is inside King John's Castle?

Inside King John's Castle are the ruinous remains of a large rectangular east-wing hall, arranged over two main floors and a basement. The castle also has an inner bailey or courtyard, while the curtain wall contains deep embrasures and narrow arrow-slits. The roofs are absent and the hall survives as a shell.

Where is King John's Castle?

King John's Castle is in Carlingford, County Louth, at Carlingford town's harbour on the south coast of Carlingford Lough. It stands on a low rocky headland at the harbour edge. Carlingford is the nearest named town in the supplied material.

When was King John's Castle built?

King John's Castle was begun in the late 12th century, with the east wing added in the 13th century. The site record gives 1261 as its prime year, while the first-raised year is not recorded. The west wing is therefore earlier than the east wing.

Was King John's Castle ever attacked or besieged?

King John's Castle was attacked during the 17th-century wars and fired on by Jacobites in 1689. During the Irish Confederate Wars it was taken by Sir Henry Tichborne in 1642, Murrough O'Brien in 1649 and Charles Coote in 1650. It was subsequently used as a Williamite hospital before the Battle of the Boyne.

Which family or clan held King John's Castle?

The de Lacy family held the building role at King John's Castle: Hugh de Lacy, Lord of Meath, built its west wing in the late 12th century after the Norman invasion of Ireland. The supplied family claim identifies de Lacy as the relevant family or clan.

What did King John's Castle look like in its prime?

King John's Castle is a D-shaped, grey-brown stone enclosure castle with massive curtain walls roughly 3.4 metres thick. Its west wing has a gatehouse and square flanking tower, while the east wing contains a large rectangular hall. Deep embrasures, narrow arrow-slits and broken battlements define the surviving silhouette above the harbour.

Is King John's Castle still standing or is it a ruin?

King John's Castle is still standing as a partial ruin. Its curtain walls, west gatehouse, square flanking tower and the ruinous shell of the east-wing hall survive. The roofs are absent, leaving a ragged line of broken battlements and tall arched openings above the quay and modern harbour buildings.

Who built King John's Castle?

King John's Castle was built by Hugh de Lacy, Lord of Meath. The west wing was raised in the late 12th century, shortly after the Norman invasion of Ireland. Other accounts associate its construction with Ralph Pepper in 1204, but the supplied history identifies Hugh de Lacy as the builder.
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