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Beginning of the Siege of Duncannon

The siege of Duncannon begins on January 20, 1645, during the Irish Confederate Wars. An Irish Catholic Confederate army under Thomas Preston besieges and successfully takes the town of Duncannon in County Wexford from an English Parliamentarian garrison. The siege is the first conflict in Ireland in which mortars are utilized.

At the outbreak of the Irish Rebellion of 1641, most of south-eastern Ireland falls to the Catholic insurgents. Roughly 1,000 rebels blockade Duncannon, which is heavily fortified and contains an English garrison of about 300 men. Around 150 of the English troops are killed in forays against the Irish at nearby Redmond’s Hall, but without siege artillery, or expertise in siege warfare, the rebels are unable to take Duncannon.

Hostilities continue throughout 1642, as the Irish, now organised as the Irish Confederacy raid the town’s hinterland. As in much of Ireland, the conflict is bitter. In one incident, Laurence Esmonde, 1st Baron Esmonde, the Royalist commander, hangs 16 Irish prisoners who have been taken at nearby Ramsgrange. In response, the Irish execute 18 English prisoners whom they have been holding.

In 1643, because of his need for troops to fight in the English Civil War, Charles I signs a ceasefire with the Irish Confederates. As a result, hostilities between Duncannon and the Catholic-held surrounding area are suspended.

However, in 1644, the English garrison of Cork, under Murrough O’Brien, 1st Earl of Inchiquin, unhappy with the Royalist truce with the Irish Confederates, declares for the English Parliament, who are to remain hostile to Irish Catholic forces throughout the 1640s. Esmonde, under pressure from elements of his garrison, also changes to the side of Parliament and effectively re-declares war on the Catholic Confederates. His motives are unclear: though he is a Protestant convert, the Esmonde family are Anglo-Irish Roman Catholics, and he owes his entire advancement to the Crown.

Duncannon is a strategically important town for two reasons. Firstly, it has formidable defences. Secondly and more importantly, its guns overlook the sea route to Waterford and New Ross, two of the most important Catholic-held towns and also ports at which the Confederates receive military aid from Catholic Europe.

Needing to keep this channel open and also fearing the presence of an English garrison deep in their territory, the Confederates’ Supreme Council in Kilkenny despatches Thomas Preston, general of their Leinster Army, to take Duncannon in January 1645. Preston has at his disposal 1,300 men, four cannons and a mortar. The mortar, the first of its kind to be used in Ireland has been donated by Spain the previous year and is commanded by a French military engineer named Nicholas La Loue. La Loue had served with Preston in Flanders and is chief of engineering in the Leinster Army.

Duncannon possesses formidable defences. For one thing, it is located on a peninsula and can only be approached from the north, the other three sides jutting out into the sea. Just off the town are docked four Parliamentarian ships, which are supplying Duncannon with food and reinforcements. Secondly, it possesse two lines of fortifications, the outer line being a more modern low deep rampart protected by a dry ditch and the inner wall being a medieval curtain wall, complete with three towers. However, it has two grave weaknesses, first, it is overlooked by a hill to the north, from which an attacker can fire into the town and, secondly, the water supply is located outside the walls. 

Preston arrives at Duncannon on January 20 and proceeds to construct a ring of trenches which cut off Duncannon on its landward side. From the hill that overlooks the town to the north, his guns are able to fire on a squadron of four Parliamentarian ships that are docked off Duncannon and providing the town with supplies. The flagship, the Great Louis, is badly damaged, its mast wrecked by cannon fire, and it takes several more hits from the mortar as it tries to get away. The ship sinks in deep water, drowning its crew and 200 soldiers who are on board.

Having cut off Duncannon’s supply from the sea, Preston proceeds to dig saps closer to the walls, the ultimate aim being to bring his cannon close enough to the walls in order to blast a breach and open the way for an assault. His engineers also dig a mine underneath one of the town’s bastions. All the while, the town’s defenders are kept under a bombardment by the mortar and, as the Confederate troops get closer to the walls, by sharpshooters. On March 12, one such sniper kills the fort’s second in command, one Captain Lurcan, who is hit in the head by a bullet.

On March 16, by which time the Irish trenches are “within pistol shot of the walls,” Preston orders the mine to be exploded, opening a breach in Duncannon’s outer walls. The Irish infantry then assault the town, but are beaten off with some losses. The following day, Saint Patricks Day, Preston tries again and this time his troops succeed in taking the town’s outer, more modern walls but are stopped at Duncannon’s inner, medieval ramparts. They succeed in occupying one of the town’s towers for an hour before being beaten back. Geoffrey Baron, a Confederate politician, who keeps a diary of the siege, reports that 24 Irish soldiers are killed in the two assaults.

At this point, Preston summons Esmonde to surrender, before he has to “proceed to extremities.” This is a delicate threat, implying that if the town falls to an assault, its defenders will be put to the sword – as is customary in contemporary siege warfare. Esmonde is also advised to surrender by the Parliamentarian vice admiral, William Smith, who is anchored offshore with seven ships, but cannot break through to relieve the town. In a letter that reaches Esmonde on March 11, Smith warns him that “if the rebels take the fort by storming it, they will undoubtedly put you all to death…you should agree with thy adversary while thou art in the way.” Esmond has Smith’s letter publicly read to his troops after the assaults of March 16-17 to discourage those who favour holding out.

Alongside the risk of massacre, the English garrison is also very low on gunpowder and water. The town’s only source of fresh water, a well, is behind the Confederate siege lines.

In light of these facts, Esmonde formally surrenders Duncannon to Preston on March 18. The Confederates take possession of the town but its garrison is allowed to march away to Youghal, which is in Protestant hands. However, they have to leave behind the town’s 18 artillery pieces. Esmonde himself dies a feways after the end of the siege. Preston goes on to briefly besiege Youghal, but bad weather, a lack of supplies and squabbling with James Tuchet, 3rd Earl of Castlehaven, the Confederate Munster general, puts an end to his campaign for the winter. 

The siege is of importance in that it reopens the sea route into Waterford and eliminates a hostile English garrison in Confederate territory. Preston, who had for many years been the Spanish military governor of Leuven, is highly experienced in siege warfare and his conduct of the siege draws widespread praise. Not only does he take the town, but he does so at a relatively low cost. Sixty-seven Confederate soldiers die in the siege, of whom roughly 30 die of disease. Given that the campaign is conducted in mid-winter, in an age when disease routinely kills many more soldiers than combat, this represents a considerable logistical achievement on the part of the Irish general.

The Great Lewis, the Parliamentarian ship sunk during the siege, is rediscovered in 1999 and raised in 2004.

Duncannon is besieged again during the Cromwellian conquest of Ireland by the forces of the English Parliament, as part of the Siege of Waterford. It repels a siege by Oliver Cromwell in 1649 but surrenders after a lengthy blockade by Henry Ireton in 1650.


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The Second Siege of Athlone

Godert de Ginkel, the commanding general of William III‘s army, begins a ten-day siege of Athlone on June 20, 1691. Athlone is besieged twice during the Williamite War in Ireland (1689–91). The town is situated in the centre of Ireland on the River Shannon and commands the bridge crossing the river into the Jacobite-held province of Connacht. For this reason, it is of key strategic importance.

The army of William III first besieges Athlone in 1690, shortly after their defeat of the main Jacobite army at the Battle of the Boyne. James Douglas and about 7,500 troops attempt to take the town, but the Jacobite garrison’s commander, Colonel Richard Grace, refuses to surrender. Lacking siege artillery, Douglas is forced to withdraw after a week.

In the summer of the following year, the Williamite army, having regrouped at Mullingar under the command of Dutch general Godert de Ginkel, marches via Ballymore to make a second attempt on Athlone.

The Jacobite commander, Charles Chalmot de Saint-Ruhe, marches his main field army from its winter quarters in Limerick to meet the threat. He draws up his force to the west of the town. Other Jacobite troops man fortifications in the ruins of the “English Town,” the eastern half of Athlone, along with a garrison in the “Irish Town” on the western bank. This arrangement is intended to allow the Jacobites to fight a staggered, drawn-out defence, though the advantage is reduced by high ground on the Leinster bank of the Shannon and the fact that the river is running exceptionally low at the time.

Jacobite defences are also hampered by disagreements between James’s Viceroy, Richard Talbot, 1st Earl of Tyrconnell, Saint-Ruhe, and Jacobite general Patrick Sarsfield. When Talbot asserts his seniority and offers advice on the defences to Saint-Ruhe, the latter refuses to recognise Talbot’s command, while Sarsfield sends him a message that his pavilion ropes will be cut if he does not leave immediately. Though Talbot surmises that a large number of the best Jacobite troops will side with him, he chooses to depart for Limerick rather than split the army.

Ginkel opens an assault on the eastern part of Athlone on June 20, which causes the Jacobites to retreat to the west bank of the river, dismantling the bridge in the process. Colonel Grace, who had been superseded as garrison commander by the French officer d’Usson, is killed in a bombardment at the western end of the bridge on the same day.

The Jacobite forces in the western half of Athlone, led by Major-General Thomas Maxwell, a Scottish Catholic, initially hold off the Williamite assault. There is fierce fighting centred on the bridge over the Shannon. The Williamites try to lay planks over the partially wrecked structure, which the Irish Jacobite troops manage to destroy despite coming under intense fire. One such Jacobite sortie, by a small group of volunteers from Maxwell’s dragoon regiment led by a Sergeant Custume or Costy, all of whom are killed, later passes into Irish folklore as an example of bravery. Several attempts by the Williamites to storm the bridge are repulsed with heavy losses.

The Williamite bombardment of the western, Connacht, side of the town is intense, with over 12,000 cannonballs and 600 bombs or mortars fired into the town. John Stevens, serving in the Grand Prior’s Regiment, records that “with the balls and bombs flying so thick, that spot was hell on earth.” During the ten-day bombardment, 32 heavy cannon and mortars fire one shot every minute. Athlone suffers the heaviest bombardment of any city in Britain and Ireland up to this point.

While developing a plan to storm the bridge, Ginkel identifies another potential crossing point at a ford to the south. To test the crossing, on the morning of June 29 he orders a Danish quartermaster and two privates, under sentence of death for cowardice, to ford the river while troops fire over their heads to give the impression they are deserting. All three ford to the western bank and return safely, whereupon Ginkel sends a force of grenadiers, 2,000 strong, to cross there and attack the Jacobite positions from the rear.

Following an argument between Saint-Ruhe and the garrison commander d’Usson, the fortifications on the western side of the city have not been levelled, as Talbot had suggested some days earlier. Saint-Ruhe does not issue an order to demolish them until June 29, apparently believing it impossible that a city could be taken with a relieving army so close by. They remain standing a day later, and a party of Ginkel’s grenadiers hurry to occupy them and raise the drawbridge there, holding off counterattacks from Saint-Ruhe’s army until the main Williamite force can be brought up. Saint-Ruhe detaches two brigades under Major-General John Hamilton to dislodge the Williamites, but after approximately an hour and a half of intense fighting, the Jacobites retreat.

The breakthrough of the Williamites forces the remains of the Jacobite garrison, who have been awaiting reinforcement from the main Jacobite force under Saint-Ruhe, to hastily abandon their positions in Athlone. Maxwell is captured. Accusations of treachery are later levelled at him, partly as he had been a supporter of Talbot’s faction. Saint-Ruhe withdraws into County Galway, passing through Ballinasloe. The Jacobites lose around 1,000 men at Athlone, though the highest estimates suggest losses of over 2,000, including colonels McGuinness, McMahon and O’Gara, in addition to Grace.

Ginkel continues to march toward Limerick, unaware of the position of Saint-Ruhe. On the morning of July 12, the Williamites are confronted by the main Jacobite army drawn up in a strong defensive position at Aughrim. In the ensuing Battle of Aughrim, Ginkel inflicts a crushing defeat on them, effectively ending Jacobite resistance in Ireland.

(Pictured: The powerful Williamites army attack, illustration by Victor Ambrus)