Exploring the History of Carrickfergus Castle

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Carrickfergus Castle is probably the best preserved medieval structures fortress in Northern Ireland, overlooking the northern shore of Belfast Lough a few miles north of Belfast City Centre. The castle played a significant role in the history of Ireland, serving as both a military stronghold and a symbol of power and authority. Over the centuries, it has seen its share of battles, sieges, and modifications. In this article, we’ll explore the rich history of Carrickfergus Castle, examining its origins, key events, architectural features, and widespread cultural significance.

The Origins of Carrickfergus Castle

The founding of Carrickfergus can be traced back to the early days of the Norman conquest of Ireland. In 1177, a Norman knight, John de Courcy, seized control of the area around Carrickfergus and began constructing a wooden castle. However, the castle was destroyed in the 1180s by local Irish forces, and it wasn’t until 1190 that the construction of a new stone castle began. The castle was built by Hugh de Lacy, another Norman knight who King Henry II of England granted the lordship of Ulster.

The Founding of Carrickfergus

Carrickfergus owes its existence to its strategic location on the east coast of Northern Ireland. The town was founded in the 12th century by Anglo-Norman invaders who sought to establish a foothold in the region. The Normans were attracted to the area because its natural harbour provided a place to anchor their ships. The castle served as a critical defensive point, allowing the Normans to keep control of the region and repel attacks from Irish forces.

The Castle’s Early Construction

The construction of Carrickfergus Castle took several years to complete. The castle’s design was typical of a Norman castle, with a keep, outer bailey, and curtain wall. The keep was the central tower, which served as the lord’s residence and a stronghold in times of siege. The outer bailey was a large area outside the keep where the soldiers and servants lived. The curtain wall surrounded the castle, providing additional protection against attackers.

The Role of Carrickfergus in Medieval Ireland

Carrickfergus Castle played a crucial role in medieval Ireland’s political and military landscape. Over the centuries, it was used as a royal residence, a garrison, and a prison. The castle symbolised Norman’s power, and its strategic location made it a valuable prize. The castle was involved in numerous battles and sieges as various Irish and English forces sought to control it.

Key Events and Battles

The Siege of Carrickfergus in 1210

One of the most significant events in the castle’s history was the Siege of Carrickfergus in 1210. The siege was led by the Irish king, Cathal Crobhdearg Ua Conchobair, who was opposed to Norman rule in Ireland. The castle was defended by John de Courcy, who managed to hold off the attackers despite being outnumbered. The siege ended when Cathal was forced to withdraw his forces due to a lack of supplies.

The Battle of Carrickfergus in 1597

The castle played a notable role in the Nine Years’ War, a conflict between the English and Irish forces in the late 16th century. In 1597, the Irish forces, led by Hugh O’Neill, attacked the castle to seize control of the region. However, the English defenders managed to hold off the attackers with the help of artillery fire.

The Capture of Carrickfergus in 1760

In the 18th century, the castle’s military significance declined and it was used primarily as a prison. However, the castle was involved in one more major military event when French forces captured it during the Seven Years’ War. The capture of the castle was a minor victory for the French, but it served as a propaganda coup, as the French could distribute images of the castle’s capture throughout Europe.

Architectural Features and Modifications

The Keep and Inner Ward

The keep of Carrickfergus Castle is one of its most distinctive and best-preserved medieval structures. It is a rectangular tower with four floors; each used for a different purpose. The first floor was used for storage, the second was the great hall, the third was the lord’s private chambers, and the fourth was used as a lookout tower. The castle’s inner ward is also notable, as it contains a variety of structures, including a chapel, a bakehouse, and a well.

The Outer Ward and Curtain Wall

The castle’s outer ward was a vast area that contained a variety of buildings, including barracks, stables, and a kitchen. The curtain wall was the castle’s outer structure, designed to provide additional protection. Over the years, various modifications were made to the curtain wall, including adding arrow slits and buttresses.

The Gatehouse and Barbican

The gatehouse was the main entrance to the castle, and it was heavily fortified. The barbican was a separate structure outside the gatehouse, designed to provide additional protection to the entrance. The gatehouse and barbican were connected by a drawbridge, which could be raised in attack times.

Carrickfergus Castle in Popular Culture

The Castle’s Role in Literature and Film

Carrickfergus Castle has appeared in several works of literature and film. One of the most notable examples is the novel “Castle Rackrent” by Maria Edgeworth, which features the castle as a setting. The castle has also been a location for several films, including “Monty Python and the Holy Grail” and “The Bruce.” The castle starred as the tv location haunted series with Annika rice.

The Castle as a Tourist Attraction

Today, Carrickfergus Castle is one of the most popular tourist attractions in Northern Ireland. Visitors can explore the castle and learn about its history and significance. The castle also hosts various events throughout the year, including re-enactments, houses historical displays and other historical events.

The Castle’s Influence on Modern Irish Culture

Carrickfergus Castle continues to be an important symbol of Northern Irish identity. The castle is featured on the coat of arms of the borough of Carrickfergus and has been referenced in numerous works of literature and music. The castle’s legacy serves as a reminder of the rich cultural heritage of Northern Ireland and its place in the wider world.


A journey through the history of Carrickfergus Castle is a journey through the history of Ireland itself. From its origins as a Norman fortress to its role in some of the most significant military events in Irish history, the castle has played a critical role in shaping the region’s fate. Today, the castle stands as a testament to the Irish people’s resilience and ability to overcome adversity. Whether you’re a history buff, film lover, or simply a curious traveller, Carrickfergus Castle is a must-see destination you won’t forget.

About the author

Originally from Scotland, Colin now resides near the beautiful seaside town of Portstewart on the Causeway Coastal Route. By day he works in IT and by day off he spends much of his time travelling around the Island with his young family, writing about his experiences for many sites both locally and nationally.