
Piers Butler, 3rd Viscount Galmoye, otherwise Viscount Galmoy, an Anglo-Irish nobleman, is born on March 21, 1652. He is descended from Thomas Butler, 10th Earl of Ormond, and is the son of Edward Butler, 2nd Viscount Galmoye, and Eleanor (née Whyte), daughter of Sir Nicholas Whyte of Leixlip, County Kildare.
Butler succeeds to the title at the age of fifteen and was educated at the University of Oxford, taking the degree of LL.D. in 1677. In 1678, he is commissioned as a captain in Colonel Thomas Dongan‘s regiment, which is disbanded before he takes up his post.
Under James II of England Butler is Privy Councillor of Ireland, Lieutenant of the County of Kilkenny, and Colonel of the 2nd Regiment of Irish Horse. Serving as part of the Jacobite Irish Army, he commands a regiment at the Battle of the Boyne and serves with distinction in the Battle of Aughrim. He is one of the signatories of the Treaty of Limerick. At the Glorious Revolution, he might have been able to secure his old estates of 10,000 acres in Kilkenny and 5,000 in Wexford, had he consented to give his allegiance to William III of England rather than following Patrick Sarsfield and James II into exile in France. Instead, the English Parliament attaints him and declares his titles forfeited in 1697 by the statute 9 Will. 3. c. 4.
In 1692, Butler is created Earl of Newcastle in County Limerick in the Jacobite peerage of Ireland. In France he is named Colonel of the 2nd Queen’s Regiment of Irish Horse in the service of that country and serves with distinction in various battles of the War of the Spanish Succession, also becoming a Lieutenant-General in the Spanish army. He is at the Siege of Roses in 1693, and in 1694 is a Brigadier attached to the army of Germany. He serves in Italy and other parts of Continental Europe from 1701 to 1703, sharing all the fortunes of the Irish Brigade. He later serves in the French army as a Lieutenant-General. He is created Brigadier of Cavalry in 1694.
Butler marries Anne Mathew and with her has one son, Colonel Edward Butler, who is killed at the Battle of Malplaquet in 1709. After the death of his first wife, he marries Henrietta FitzJames, the illegitimate daughter of King James II and Arabella Churchill and the widow of Henry Waldegrave, 1st Baron Waldegrave, on April 3, 1695. She deserts him and returns to England.
Butler dies at the age of eighty-eight in Paris on June 18, 1740, and is buried at St. Paul’s there. John C. O’Callaghan writes in Irish Brigades in the Service of France (Glasgow, 1870): “The successive claimants of the title of Galmoy were officers in France down to the Revolution; in whose armies, as well as in others, various gentlemen have honourably represented a name, of which the illustrious General Lafayette is related to have said, in the war for the independence of the United States of America, that ‘whenever he wanted anything well done, he got a Butler to do it.'”
Notwithstanding the attainder, the viscountcy is assumed by his nephew, James Butler of the Irish Brigade in France, the son of the Viscount’s brother, Richard Butler of Galmoye.
