O’Mahony comes from a distinguished Munster family. One brother, Dermod, had been a colonel and another, Daniel, a captain in the Irish Jacobite army that left Limerick for the continent in 1691 in what is known as the Flight of the Wild Geese. Daniel is also a brother-in-law of another famous officer of the Irish Brigade of France, the Marshal James FitzJames, 1st Duke of Berwick. Holding the rank of major, O’Mahony achieves great fame for his part in the Battle of Cremona, where the Irish Brigade foils Prince Eugene of Savoy‘s surprise attack on the city in 1702, and has steadily risen through the ranks.
During the War of Spanish Succession, many officers and units of the Irish Brigade serve in Spain fighting the Allies’ attempt to place Archduke Charles, son of Habsburg (Austrian) Emperor Leopold I, on the Spanish throne. In the early part of 1707, O’Mahony commands an unsuccessful attempt to capture the town of Alcoy with a force of about 1,800 men. On January 2, 1708, he arrives at the gates of the city again, but this time he commands a force of over 6,000, including the Irish battalions of Dillon, Berwick and Bourke.
By January 4, O’Mahony’s six guns have breached the walls of Alcoy, but the Allied garrison fights well and repulses attempts to take it on the 5th and 7th with much loss of life on the Franco-Spanish side. With no relief in sight, the garrison’s situation is hopeless. O’Mahony accepts the garrison’s surrender on January 9.
Daniel O’Mahony is one of the finest commanders of all The Wild Geese. After Alcoy he serves in Sicily and then back in Spain again. He is created a Count of Castile and promoted to lieutenant general. One of the Count’s sons, James, also reaches the rank of lieutenant general in the Spanish army and the other, Dermod, becomes the Ambassador of Spain to Austria.
(Pictured: The flag of the Duke of Berwick’s regiment of the Irish Brigade of France)
Waterford is a Catholic city and like most other towns in southeast Ireland, the populace has supported the Confederate Catholic cause since the Irish Rebellion of 1641. Late in 1641, Protestant refugees, displaced by the insurgents, begin to arrive in the town, creating tension among the Catholic townspeople. The city’s mayor wants to protect the refugees, but the recorder and several of the aldermen on the city council want to strip them of their property and let in the rebels, who arrive outside the walls in early 1642. At first, the Mayor’s faction is successful in refusing to admit rebel forces, but by March 1642, the faction in the municipal government sympathetic to the rebellion prevails. The Protestants in Waterford are expelled, in most cases put on ships to England, sometimes after having their property looted by the city mob. In 1645, Confederate troops under Thomas Preston besiege and capture nearby Duncannon from its English garrison, thus removing the threat to shipping coming to and from Waterford.
Waterford’s political community is noted for its intransigent Catholic politics. In 1646, a synod of Catholic Bishops, based in Waterford, excommunicate any Catholic who supports a treaty between the Confederates and English Royalists, which does not allow for the free practice of the Catholic religion. The Confederates finally agree to a treaty with Charles I of England in 1648, in order to join forces with the Royalists against their common enemy, the English Parliament, which is both anti-Catholic and hostile to the King. The Parliamentarians land a major expeditionary force in Ireland at Dublin, under Cromwell in August 1649.
The English Parliamentarian New Model Army arrives to besiege Waterford in October 1649. One of the stated aims of Cromwell’s invasion of Ireland is to punish the Irish for the mistreatment of Protestants in 1641. Given Waterford’s history of partisan Catholic politics, this provokes great fear amongst the townspeople. This fear is accentuated by the fate of Drogheda and nearby Wexford which had recently been taken and sacked by Cromwell’s forces and their garrisons massacred.
Waterford is very important strategically in the war in Ireland. Its port allows for the importation of arms and supplies from continental Europe and its geographical position commands the entrance of the rivers Suir and Barrow.
Before besieging Waterford, Cromwell has to take the surrounding garrisons held by Royalist and Confederate troops in order to secure his lines of communication and supply. Duncannon, whose fort commands the sea passage into Waterford, is besieged by Parliamentarians under Ireton from October 15 to November 5. However, due to a stubborn defence, the garrison there under Edward Wogan holds out. This means that heavy siege artillery cannot be brought up to Waterford by sea.
New Ross surrenders to Cromwell on October 19 and Carrick-on-Suir is taken on November 19. A counterattack on Carrick by Irish troops from Ulster under a Major Geoghegan is repulsed on November 24, leaving 500 of the Ulstermen dead.
Having isolated Waterford from the east and north, Cromwell arrives before the city on November 24. However, Waterford still has access to reinforcements from the west and up to 3,000 Irish soldiers from the Confederate’s Ulster Army under Richard O’Farrell are fed into the city in the course of a week. O’Farrell, having been a successful officer in the Spanish Army, is highly trained and experienced in siege warfare from battles in Flanders. Cromwell has come up against a superior minded soldier and commander. The weather is extremely cold and wet, and the Parliamentarian troops suffer heavily from disease. Out of 6,500 English Parliamentarian soldiers who besiege Waterford in 1649, only 3,000 or so are still fit by the time the siege is called off. Added to this, Cromwell is able to make little headway in taking the city. The capture of a fort at Passage East enables him to bring up siege guns by sea, but the wet weather means that it is all but impossible to transport them close enough to Waterford’s walls to use them. Farrell proves tactically superior in defending Waterford and repels Cromwell’s attempts. Eventually Cromwell has to call off the siege on December 2 and go into winter quarters at Dungarvan. Among his casualties is his commander Michael Jones, who dies of disease.
He is born John MacKenna, the son of William MacKenna of Willville House near Monaghan and Eleanora O’Reilly and, on his mother’s side, a nephew to CountAlejandro O’Reilly. Count O’Reilly takes an interest in the young Mackenna and takes him to Spain where he studies at the Royal School of Mathematics in Barcelona. He also trains in the Royal Military Academy as a Military Engineer between 1785 and 1791.
In 1787 Mackenna is accepted into the Irish Brigade of the Spanish Army, and joins the army fighting in Ceuta in northern Africa, under Lieutenant Colonel Luis Urbina, and is promoted to Second Lieutenant. In 1791 he resumes his studies in Barcelona and acts as liaison with mercenaries recruited in Europe. The following year he is promoted to Lieutenant in the Royal Regiment of Engineers. In the War of the Pyrenees against the French, he fights in Rosselló under General Ricardos and there meets the future liberator of Argentina, José de San Martín. For his exploits in defence of the Plaza de Rozas, he is promoted to captain in 1795.
For the purpose of a new assignment, in October 1796, Mackenna leaves Spain for South America. He arrives in Buenos Aires and then travels to Mendoza and to Chile across the Andes and then to Peru. Once in Lima, he contacts Ambrosio O’Higgins, another Irishman, at that time Viceroy of Perú, who names him Governor of Osorno and puts him in charge of the reconstruction works for the southern Chilean town.
In this capacity, Mackenna convinces the families of Castro, on Chiloé Island, to move to Osorno to found a colony there. He builds the storehouse and two mills, as well as the road between Osorno and present-day Puerto Montt. His successful administration provokes jealousy from Chile’s captain-general Gabriel de Avilés, who fears that Mackenna and Ambrosio O’Higgins will create an Irish colony in Osorno. Both Irishmen are loyal to the Spanish crown, though Mackenna has good relations with O’Higgins’ son Bernardo, the future emancipator of Chile, and is also connected with the VenezuelanFrancisco de Miranda and his group of supporters of South American independence. When Ambrosio O’Higgins dies in 1801, Avilés is appointed viceroy of Peru. It takes him eight years to remove Mackenna, O’Higgins’s protégé, from Osorno.
In 1809 Mackenna marries Josefina Vicuña y Larraín, an eighteen-year-old Chilean woman from a family with revolutionary connections, with whom he has three children. After the Declaration of Chilean Independence in 1810, he adheres to the Patriot side and is commissioned by the first Chilean government to prepare a plan for the defense of the country and oversees the equipment of the new Chilean Army. At this juncture he trains the first military engineers for the new army.
The following year Mackenna is called to the defence committee of the new Republic of Chile, and in 1811 is appointed governor of Valparaíso. Owing to political feuds with José Miguel Carrera and his brothers, he is dismissed from the post and taken prisoner. He is a firm ally of Bernardo O’Higgins, who appoints him as one of the key officers to fight the Spanish army of General José Antonio Pareja. His major military honour is attained in 1814 at the Battle of Membrillar, in which the general assures a temporary collapse of the royal forces.
As a reward for his victory, Mackenna is appointed commandant-general by Bernardo O’Higgins, but after a coup d’état led by Luis Carrera he is exiled to Argentina in 1814, when Carrera comes to power. Mackenna dies in Buenos Aires on November 21, 1814, following a duel with Carrera.
A bust of General Mackenna is publicly presented to Monaghan County Museum on August 5, 2004 by his direct descendant, Luis Valentín Ferrada. At the presentation ceremony, MacKenna, the man “unreservedly regarded as the greatest of County Monaghan’s exiles” is commemorated in speeches by Most Rev. Dr. Joseph Duffy, Bishop of Clogher and by his descendant Senor Ferrada who declares, “In this city of Monaghan, very near to Willville House, the tombs of my ancestors are in the old cemetery. There, my own blood is interred in the sacred earth.”
O’Reilly’s father, grandfather and several other ancestors are chiefs of the O’Reilly clan and Lords of Breifne O’Reilly. His mother is Catherine MacMahon. He resides at Bellanacargy Castle in the barony of Tullygarvey, near to present day village of Drung. Bellanacargy castle, anciently referred to as Ballynacarraig because it was built on a carraig (rock island) situated in the middle of the River Annalee, is destroyed in May 1689 by Williamite forces led by Thomas Lloyd.
During the Parliamentary session of 1640 O’Reilly is enlisted by Rory O’Moore in the plot to start a rebellion against English rule in Ireland. O’Moore is a distant relation as his sister Cecilia O’Moore is married to O’Reilly’s first cousin, Tirlagh O’Neill. On the outbreak of the Irish Rebellion in October 1641 he is elected chief of the O’Reillys. As a result, the Irish Parliament expels him on November 16, 1641. On November 6, 1641 he orders a general gathering of his clansmen from 16 to 60 years of age, to be held at Virginia, and on December 11, 1641 he has possession of the whole county, except the Killeshandra castles of Keelagh and Croghan which are defended by Sir Francis Hamilton and Sir James Craig. He raises a brigade of twelve hundred men, composed chiefly of his name and family, and serves with distinction as lieutenant-general in the service of the Confederate Catholics of Ireland. The Assembly of Kilkenny appoints him Lord President of Ulster. His second cousin Myles O’Reilly is High Sheriff of Cavan in 1641 at the outbreak of the Rebellion.
O’Reilly is detained for treason by the English government in 1642. In his diary for June 3, 1644, the historian Sir James Ware II states, “Intelligence came to Dublin that Roger Moore and Philip O’Reilly, two of the first incendiaries were committed to prison at Kilkenny.” O’Reilly is further denounced by the Act for the Settlement of Ireland 1652 at the end of the rebellion. Following the collapse of the Irish confederacy, he formally surrenders to Oliver Cromwell at Cloughoughter Castle on April 27, 1653, being the last Irish garrison to do so. He secures favourable terms and is obliged to leave Ireland. He retires with his brigade into Spain and thence to the Netherlands, where he serves in the Spanish army for about two years and dies in 1655. He is buried in the Irish monastery of St. Dominick in Leuven, Belgium.
In January 1743, General De Gages’ 13,000 strong Spanish army lay at Bologna, south of the Panaro. Count Traun’s Austrian and Piedmont-Sardinian army of 11,000 lay to the north of the river, blocking De Gages’ attempts to cross the formidable barrier. Traun prefers a maneuvering defense to risking his army in a pitched battle with his opponent, but concerns in Madrid are more political than strategic. Needing a victory, Philip V of Spain and his Queen Elisabeth Farnese demand that De Gages launch an offensive or tender his resignation. Accordingly, leaving Bologna on the night of February 3, De Gages slips across the Panaro and enters the Duchy of Modena, seeking a decisive encounter with Traun.
Fortunately for De Gages, Marshal Traun is ready to oblige him. Aware of the criticism leveled at him in Vienna where his enemies are trying to relieve him of his command, and also that Spain’s recent seizure of Savoy might well induce the King of Sardinia to negotiate with the Spanish Crown, the Marshal decides that a victory will quell the uproar and induce Austria’s allies to think twice about negotiating. Gathering up his army, Traun moves to block De Gages’ path and prevent him from advancing further into Modena. The two armies meet at the village of Camposanto.
On the morning of the battle, De Gages draws up his army on the outskirts of the village in the traditional fashion with his infantry in the center and the cavalry on the wings. Traun also draws up his army in the same manner, but being slightly outnumbered, he chooses to gamble with an unorthodox strategy. Instead of aligning himself directly opposite the Spaniards, he shifts his troops to the northwest, which means that the center of Traun’s infantry is directly opposite the gap between Gages’ infantry and the right wing of cavalry. Although this means that Traun would have a greater superiority of numbers on this wing and that he could also deliver a flank attack on the Spanish right, his own right flank would, however, be vulnerable to a Spanish flank attack. Marshall is relying on the troops of that wing to delay the Spanish long enough for the action on his other wing to be decisive.
Matters are helped when De Gages chooses 4:00 in the afternoon to launch the attack, which leaves only a few hours of daylight for a battle. The Spanish are initially successful on both wings, where their cavalry drives off the Austro-Piedmontese cavalry, wounding Count Aspremont in the process and leaving the Austrian infantry vulnerable. However instead of reforming to attack the infantry, the Spanish chase them off the field. Traun stabilises his left flank, and leads his infantry into the attack against the Spanish. Meanwhile, Count Schulenberg regroups the Austrian cavalry on the Austrian right, and launches a counterattack against the Spanish cavalry. On the other flank Aspremont’s replacement, General Leutrum, leads his wing forward as well, smashing the Spanish right wing. Due to darkness it is necessary for both armies to withdraw the field. The Spanish back across the Panaro towards Bologna. Due to the smoke and darkness, many units lose their way. The 1st Guadalaxara marches in the direction of the advancing austro-sardian infantry columns, and it has to surrender after a short defence inside the walls of a farm.
Casualties in the battle are 1,755 dead, 1,307 wounded and 824 prisoners for the Spanish, while the Austro-Piedmontese lose 397 dead and 1,153 wounded or prisoners. Traun himself has two horses shot from under him during the battle.
De Gages retreats to Bologna but on March 26 he is also forced to retreat to Rimini. Despite this, the battle is widely considered a victory in Madrid, and de Gages is awarded a victory title, Count of Campo Santo. Following the battle, France promises support and co-operation with the Spanish, but for the moment Traun has saved North Italy for Maria Theresa.
Once again hundreds of Irishmen die many miles from home for “every cause but their own.”
During the 
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