The siege of Enniskillen takes place at Enniskillen in Fermanagh, present day Northern Ireland, in 1594 and 1595, during the Nine Years’ War. In February 1594, the English had captured Enniskillen Castle from the Irish after a waterborne assault and massacred the defenders after they surrendered. From May 1594, an Irish army under Hugh Maguire and Cormac MacBaron O’Neill besiege the English garrison in the castle, and in August they defeat an English relief force. A second relief force is allowed to resupply the garrison, but the castle remains cut off. Eventually, in May 1595, the English garrison surrenders to the Irish and are then massacred.
In 1593, Hugh Maguire, Chief of the Name and Lord of Fermanagh, had objected to the behaviour of the newly-appointed English Crown sheriff Humphrey Willis. As he had done before being expelled by Hugh Roe O’Donnell from Tyrconnell in 1592, Willis is cattle raiding and plundering throughout Clan Maguire territory. Maguire is not strong enough to resist the sheriff, but after receiving reinforcements from Hugh O’Neill, Earl of Tyrone, Maguire expels Willis. In May and June 1593, Maguire and Brian Oge O’Rourke of West Breifne raid lands held by the English Lord President of Connaught, Richard Bingham. They destroy the town around Ballymote Castle. This is part of a proxy war waged to distract the Crown while Tyrone strengthens his position in Ulster. As hoped for, the Crown responds by sending an army under Sir Henry Bagenal and Gaelic leader Hugh O’Neill, Earl of Tyrone (outwardly still loyal to the Crown), who defeat Maguire’s force at the Battle of Belleek in October 1593. However, Maguire’s main force remains unscathed.
On May 17, 1594, now acting with the covert support of Tyrone, Hugh Maguire and Cormac MacBaron O’Neill lay siege to Enniskillen which is now isolated in hostile country. Their army consists of 1,400 foot soldiers and 600 horsemen. It quickly grows with support arriving from HughRoeO’Donnell. The English commander, James Eccarsall, has only 50 foot soldiers and 24 horsemen to defend the castle, along with some light artillery. Eccarsall launches a sortie by boat but has to retreat under heavy fire. Irish fortifications cut off access by river and the castle is attacked nightly. Many of the garrison fall sick due to food shortages and exhaustion brought on by incessant skirmishing with the Irish.
On August 7, Maguire and his allies defeat an English relief force for Enniskillen at the Battle of the Ford of the Biscuits. A second relief force commanded by the Lord DeputyWilliam Russell is sent by another route. Although it is not attacked by the Irish, none of Russell’s scouts or messengers reach the castle nor return. Russell relieves the beleaguered garrison by August 30 with six months supplies, then withdraws. Following this, there is a truce, but “subterfuge and deception were the hallmarks of this stage of the war.”
The assault focuses on the English fort which sits at a bridge on the River Blackwater, marking the border between Counties Tyrone and Armagh. It is built by Walter Devereux, 1st Earl of Essex, in 1575 as an outpost of English military strength in the heart of Gaelic Ulster, but also to secure the power of the main Irish ally in the region, Hugh O’Neill, Baron of Dungannon. The fort is composed of a square earthwork bawn “twelve score yards in circuit” reinforced by two bulwarks and punctuated with gun loops in its ramparts. In one corner stands a wooden tower, four stories tall, topped with a wooden walkway and a slate-covered building. It is accessed by two doors, one leading out onto the ramparts, another leading to a cellar. Each story has defensive firing loops, also known as spike holes. This tower overlooks a road and bridge across the river. At the other side of the river, on the Tyrone side, is a stone tower. The stone tower controls access to the bridge, as the road runs through it via large wooden doors.
Hugh O’Neill, Lord of Tyrone, is thought an ally of the English Crown and he is supported by the English authorities in Dublin as a counterweight to the power of other native lords in Ulster such as Turlough Lynagh O’Neill. However, encroachment by English authorities on the liberties of the native Irish lords in Ulster during the 1580s and early 1590s causes O’Neill to create an alliance of Irish lords, which look to throw off English rule with the help of Philip II of Spain. From April 1593, O’Neill orchestrates a proxy war against the English using Hugh Maguire, Lord of Fermanagh, and Hugh Roe O’Donnell, Lord of Tyrconnell. They engage the English in the west of Ulster while O’Neill, outwardly still loyal to the Crown, strengthens his power base in Ulster and subdues the Crown’s Irish allies in the north. The Irish lay siege to Enniskillen Castle and defeat an English force sent to relieve it.
O’Neill’s alliance is not limited to Ulster as he is allied to Fiach McHugh O’Byrne in Leinster. He has come under increasing pressure from Lord DeputyWilliam Russell‘s military expeditions into the Wicklow Mountains. In desperation, Fiach McHugh asks that Tyrone offer help or at least raid the northern Pale to draw Russell out of Wicklow. O’Neill requests a meeting with Russell to discuss how to proceed but this is dismissed by the Lord Deputy as a ploy to draw him out of O’Byrne’s lands. Therefore, to help O’Byrne, O’Neill makes his first open move against the Crown.
On the morning of Sunday, February 16, 1595, Art MacBaron O’Neill approaches the fort from the direction of Armagh with 40 men, escorting what appears to be two prisoners. As they cross the bridge one of the English warders notices the match cords of the Irishmen’s matchlock calivers are lit, a sign that they are ready to fire. The English open fire and MacBaron’s men force their way into the stone tower, but the English withdraw to the upper stories and prevent the Irish from taking the tower. Meanwhile, on the other side of the river, 200 Irish soldiers sweep over the earth ramparts and take the bawn. The English soldiers and their families retreat to the wooden tower. Defensive fire from within keeps the Irish back and twice the warders thwart MacBaron’s attempts to burn the position. Fifteen of MacBaron’s men are killed attempting to storm the towers, and eight more later die of their wounds. The stalemate lasts until five o’clock in the evening when MacBaron calls for a ceasefire. He offers the garrison terms for their surrender. The English, led by Edward Cornwall, are critically low on ammunition but still prevaricate until MacBaron threatens to burn the fort to the ground with all in it. The ward’s surrender is agreed and MacBaron guarantees their safe passage to Newry.
The loss of the fort is doubtless a military setback for the Crown, but of more significance is the presence of the Earl of Tyrone in person. According to the English commander, O’Neill arrives after the surrender and is outraged at the losses suffered in taking the fort and is angry that the defenders had not been executed. After the English soldiers and their families leave, O’Neill looks on as the bridge is demolished and the fort’s defence slighted. Up until this point there is no concrete proof that O’Neill was active in the attacks by Maguire and O’Donnell in the west of Ireland. Now there is indisputable proof that the Crown was at war with O’Neill.
(Pictured: The Blackwater Fort at present-day Blackwatertown in County Armagh, built by the Earl of Essex during a foray into Ulster in 1575 and captured and destroyed by the Irish in 1595. This pen and ink sketch measures 22½ by 16½ inches and is dated March 27, 1587.)
The battle acquires its distinctive name due to the supplies of the Crown forces, largely hard biscuits, which are scattered and left floating in the river. The battle is an early exchange in the Nine Years’ War and exposes the vulnerability of Crown forces to ambushes in the wilder parts of Ulster with its thick woods and bogs.
The relief force is under the joint command of Sir Henry Duke and Sir Edward Herbert, who have 600 infantrymen and 40 horses. Duke and Herbert believe this to be insufficient and write to the Lord Deputy that “to go without a thousand men at the least or otherwise we shall dearly repent our going.” No reinforcements are forthcoming therefore the column sets north from Cavan on August 4. Burdened with supplies, the army is expected to take four days to march twenty-nine miles north to Enniskillen. The night before the battle the English camp is pestered by Irish gunfire and incessant skirmishing which causes the English troops to be poorly rested when the set out on August 7 to relieve the beleaguered garrison. As the thin column starts to snake its way north, almost immediately it comes under attack on both flanks as Irish skirmishes hurl javelins, but this is not the main attack.
As the relief expedition approaches Enniskillen from the south, Maguire and Cormac MacBaron lay in wait for them on the Arney River. The Army’s cavalry scouts fail to detect the Irish lying in wait for them. The ground is boggy near the Arney ford; therefore, they are forced to dismount. Consequently, the infantry escorting the supply wagons for Enniskillen run straight into the ambush. Around eleven o’clock the head of the column approaches the ford. Without warning intense Irish gunfire tears into the lead English elements from concealed positions on the opposite bank. With the advance stalled, Maguire and MacBaron assail the rear of the column with the bulk of their forces. Wings of English shot deploy to skirmish with the Irish, but withering Irish fire pushes them back to their pike stands in the column.
The English rear falls into disorder causing the Irish pike and Scots mercenaries to charge, forcing them to flee pell mell onto the centre of the column. The English collapse continues as the column concertinaed towards the head of the army stalled at the ford. Fortunately, the leading English pike has forced the crossing, pushing back the Irish shot, giving the English some room to reorder and regroup north of the river.
The English are engaged by Irish shot from the surrounding hills, but a counterattack is stillborn when its leader, Captain Fuller, is killed. With most of the supplies abandoned at the river, Duke and Herbert decide their only option is to retreat. However, their retreat to the ford is met with renewed gunfire and the disintegrating army is compelled to cross on another ford an “arrow shot” upstream.
Luckily for Duke and Herbert’s men they are not pursued as most of the Irish have fallen to looting the baggage train which gives the battle its name, Béal-Átha-na-mBriosgadh or The Ford of the Biscuits.
The badly mauled Crown forces retreat to Cavan. News of the defeats causes some alarm due to the small size of the peacetime Royal Irish Army, which is scattered in garrisons across the island. Although this can be supplemented by forces of loyal Gaelic chiefs, fresh troops need to be raised in England and sent across the Irish Sea to contain the developing northern rebellion. In addition, a force of soldiers who have been serving in Brittany is brought to Ireland.
A second relief expedition, this time led by the Lord Deputy of Ireland William Russell, 1st Baron Russell of Thornhaugh, manages to reach Enniskillen and re-supply it. However, Enniskillen does fall to the rebels in May of the following year and the garrison is massacred, despite having been promised their lives when they surrendered.