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Greencastle today

Ireland · Partial ruin

Greencastle

Greencastle is a medieval stone castle on a low headland at the entrance to Carlingford Lough in County Down, Northern Ireland. It dates mainly from the 13th century with substantial 15th–16th-century alterations, and stands beside an earlier motte and a late-medieval stone church. The site is a state-care historic monument and was built to guard the narrow channel and ferry crossing to Carlingford.

Photograph via Wikimedia Commons

Its prime

1590

Today

Partial ruin

As it stood in 1590

What Greencastle looked like in its prime.

A compact rectangular stone tower/keep with a crenellated parapet stands on a grassy headland beside Carlingford Lough, built of grey local stone. At prime the tower is complemented by an enclosing rectangular curtain wall with four corner towers and low domestic ranges against the inner wall; some corner towers are lower or ruined. The castle sits above a surviving earthen motte on the seaward side, with distant hills across the lough in the background.

Its story

The story of Greencastle.

Greencastle was likely built by Hugh de Lacy, paired with Carlingford Castle on the opposite side of Carlingford Lough to guard the narrow entry channel and the ferry crossing between the two. The motte of an earlier wooden motte-and-bailey castle, possibly built by John de Courcy, still stands on the seaward side, and according to one legend, de Courcy was married at Greencastle.

Richard de Burgh, Earl of Ulster, held the castle for the English Crown from 1264 to 1333. Edward Bruce, brother of Robert, attacked and took it in 1316, despite one of de Burgh's daughters having married Robert the Bruce himself. Attacked at least twice by the Irish in the later 14th century, it was still maintained as an English garrison in the 1590s; in the 16th century it was held by the Earl of Kildare and then by Nicholas Bagenal of Newry.

The castle fell into disuse after a bombardment by Cromwellian soldiers, carried out to stop it being used by rebel forces. Dating mainly from the 13th century with substantial 15th- and 16th-century alterations, it stands beside a late-medieval stone church; burial pits excavated in 2003 held a woman and a young child dated to around 1270–1380, likely contemporaries of the castle's construction. It is a state-care historic monument.

Step inside

7 places to explore in 1590.

The record describes 7 distinct spots at Greencastle, including the full exterior approach. 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 across the fields (exterior)Seaward motte (exterior)Main tower/keep exteriorOn the battlements of the towerInner courtyard (within the curtain walls)One corner tower and curtain wall (exterior)Late-medieval stone church nearby

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Whose castle

Clans who held Greencastle.

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

  • de Lacy

    Likely built by Hugh de Lacy, with Carlingford Castle opposite, to guard the entry to Carlingford Lough.

  • de Burgh

    Held for the English Crown by Richard de Burgh, Earl of Ulster, 1264–1333.

  • Bagenal

    Held in the 16th century by Nicholas Bagenal of Newry.

Questions about Greencastle

What is the history of Greencastle?

Greencastle dates mainly from the 13th century and was built to guard the narrow entry channel to Carlingford Lough and its ferry crossing. It was likely built by Hugh de Lacy alongside Carlingford Castle. Edward Bruce attacked and took it in 1316, while later attacks and Cromwellian bombardment eventually left it disused.

Why was Greencastle built, and what was it used for?

Greencastle was built as a defensive stronghold guarding the narrow channel into Carlingford Lough and the ferry crossing between the two shores. It was paired with Carlingford Castle opposite the lough. It later served as an English garrison, including in the 1590s, before falling into disuse after Cromwellian bombardment.

Where is Greencastle?

Greencastle is in County Down, Northern Ireland, in the townland of Greencastle in the Newry and Mourne District Council area. It stands on a low headland at the entrance to Carlingford Lough, beside the lough and near a late-medieval stone church.

When was Greencastle built?

Greencastle dates mainly from the 13th century, with substantial alterations in the 15th and 16th centuries. The year when it was first raised is not recorded. An earlier wooden motte-and-bailey castle stood on the seaward side before the stone castle.

Was Greencastle ever attacked or besieged?

Greencastle was attacked and taken by Edward Bruce in 1316. It was attacked at least twice by the Irish in the later 14th century, and Cromwellian soldiers later bombarded it to prevent its use by rebel forces. The bombardment was followed by the castle falling into disuse.

Which family or clan held Greencastle?

The de Lacy family is associated with Greencastle because Hugh de Lacy likely built it with Carlingford Castle opposite. Richard de Burgh, Earl of Ulster, held it for the English Crown from 1264 to 1333. Nicholas Bagenal of Newry held it in the 16th century.

What did Greencastle look like in its prime?

In its prime, Greencastle was a compact rectangular stone tower or keep built of grey local stone, with a crenellated parapet. A rectangular curtain wall with four corner towers enclosed it, with low domestic ranges against the inner wall. Some corner towers are lower or ruined, and the castle stands above an earthen motte.

Is Greencastle still standing or is it a ruin?

Greencastle is still standing but is in partial ruin. The main tower or keep and parts of the rectangular curtain wall survive, while some corner towers are lower or ruined. The castle fell into disuse after bombardment by Cromwellian soldiers.
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