Earl of Roscommon was a title in the Peerage of Ireland. It was created on 5 August 1622 for James Dillon, 1st Baron Dillon. He had already been created Baron Dillon on 24 January 1619, also in the Peerage of Ireland. The fourth Earl was a courtier, poet and critic. The fifth Earl was a professional soldier, politician and courtier: he was friendly with Samuel Pepys, who refers to him several times as "Colonel Dillon" in his famous Diary. After the death of the tenth Earl, there were two prolonged investigations by the Irish House of Lords during the 1790s to ascertain the legitimacy of his son Patrick, against the rival claim by Robert Dillon, a descendant of the seventh son of the first Earl and the next male heir in line. These eventually found in Patrick's favour. The titles became dormant on the death of the eleventh Earl in 1816. However, in 1828 the United Kingdom House of Lords decided that the rightful heir to the peerages was Michael Dillon, another descendant of the seventh son of the first Earl, who became the twelfth Earl. The House of Lords decided against Francis Stephen Dillon, an inmate of a debtors' prison who dubiously claimed descent from the third son of the first Earl. The titles became extinct on the death of the twelfth Earl on 15 May 1850.
Wentworth Dillon, 4th Earl of Roscommon (1637–1685), was an Anglo-Irish soldier and poet.
Randall MacSorley MacDonnell, 1st Earl of Antrim, PC (Ire), rebelled together with Tyrone and Tyrconnell in the Nine Years' War but having succeeded his brother, Sir James mac Sorley MacDonnell, as Lord of the Route and the Glynns in 1601, he submitted to Mountjoy, the Lord Deputy of Ireland, in 1602.
Henry Folliott, 1st Baron Folliott (1568–1622) was an English soldier in the Irish army. He fought in the Nine Years' War and then in the suppression of O'Doherty's rebellion at the Siege of Tory Island.
Theobald Dillon, 7th Viscount Dillon of Costello-Gallin supported King James II, was attainted on 11 May 1691, and fell in the Battle of Aughrim during the Williamite War. His attainder was reversed in favour of the 8th Viscount on 20 June 1694.
Henry Dillon, 8th Viscount Dillon was an Irish soldier and politician. In 1689 he sat in the Patriot Parliament. He fought for the Jacobites during the Wiiliamite War, defending Galway against Ginkel and surrendering it in 1691 after a short siege. He obtained the reversal of his father's attainder in 1696 recovering his father's lands.
Thomas Dillon, 4th Viscount DillonPC (Ire) (1615–1673) held his title for 42 years that saw Strafford's administration, the Irish Rebellion of 1641, the Irish Confederate Wars and the Cromwellian Conquest of Ireland. He was a royalist and supported Strafford and Ormond. He sided with the Confederates for a while but was a moderate who opposed Rinuccini, the papal nuncio.
Sir Roger Jones, 1st Viscount RanelaghPC (Ire) was joint Lord President of Connaught with Charles Wilmot, 1st Viscount Wilmot. He commanded the government forces in Connaught during the Irish Rebellion of 1641 and the beginning of the Irish Confederate Wars defending Athlone against James Dillon until February 1643.
Sir James Dillon, 3rd Earl of Roscommon was an Irish magnate and politician. He was born a Catholic but converted at a young age to the Church of Ireland. He supported Strafford during his term as governor of Ireland. In the Confederate Wars and the Cromwellian conquest he was a royalist. He died in 1649, but was nevertheless included as the fifth on the list of people that were excluded from pardon in Cromwell's 1652 Act of Settlement.
Christopher Plunket, 2nd Earl of Fingall and 11th Baron Killeen was an Irish politician and soldier. In 1641 he negotiated with the rebels on behalf of the Old English of the Pale and pushed them to join the rebellion. He fought for the rebels at the siege of Drogheda. He joined the Confederates and fought in their Leinster army, notably at Dungan's Hill. When the Confederates fused into the Royalist Alliance, he fought under James Butler, 1st Duke of Ormond in the Battle of Rathmines where he was wounded and taken prisoner. He died of his wounds two weeks later in captivity at Dublin Castle.
Richard Butler, 1st Earl of Arran (1639–1686) was Lord Deputy of Ireland from 1682 to 1684 while James Butler, 1st Duke of Ormonde, his father, the Lord Lieutenant, was absent in England. He sat in the Irish House of Lords as Earl of Arran and in the English one as Baron Butler of Weston. When William Howard, 1st Viscount Stafford was accused of treason during the Popish Plot, Arran braved the anti-Catholic hysteria and voted not guilty.
Sir William Parsons, 1st Baronet of Bellamont, PC (Ire), was known as a "land-hunter" expropriating land from owners whose titles were deemed defective. He also served as Surveyor General of Ireland and was an undertaker in several plantations. He governed Ireland as joint Lord Justice of Ireland from February 1640 to April 1643 during the Irish rebellion of 1641 and the beginning of the Irish Confederate War.
Nicholas Netterville of Dowth, County Meath, Ireland, was born in 1581, and succeeded his father, John Netterville, in the family estate on 20 September 1601. Although an enemy accused them of being "but a mean family" the Nettervilles had in fact been in Ireland since before 1280 and had been established at Dowth for centuries; they were related to many of the leading families of The Pale including the Earl of Kildare, Lord Slane, Lord Howth and the Luttrells of Luttrellstown Castle. Nicholas was the grandson of Luke Netterville, judge of the Court of King's Bench (Ireland) and nephew of the leading barrister and statesman Richard Netterville. His mother was Eleanor Gernon, daughter of Sir James Gernon of Castleton, County Louth. Being "a person of many good qualities" he was created, 3 April 1622, Viscount Netterville, of Dowth in the County Meath, taking his seat, 14 July 1634. He died in 1654 and was buried at Mountown, County Dublin.
Sir Lucas Dillon, also called Luke, was a leading Irish barrister and judge of the Elizabethan era who held the offices of Attorney General for Ireland and Chief Baron of the Irish Exchequer. He supported the Lord Deputy Henry Sidney in the cess controversy and the Lord Deputy John Perrot in the Desmond Rebellions. He was held in high regard by Queen Elizabeth, but was accused by his enemies of corruption and maladministration.
James Dillon, 1st Earl of Roscommon fought for the crown in the Nine Years' War. He was ennobled despite being a Catholic after his son Robert turned Protestant.
Carey or Cary Dillon, 5th Earl of Roscommon, PC (Ire) (1627–1689) was an Irish nobleman and professional soldier of the seventeenth century. He held several court offices under King Charles II and his successor King James II. After the Glorious Revolution he joined the Williamite opposition to James and was in consequence attainted as a traitor by James II's Irish Parliament in 1689. In that year he fought at the Siege of Carrickfergus shortly before his death in November of that year.
Elizabeth Butler, Duchess of Ormond and 2nd Baroness Dingwall reunited the Ormond estate as her maternal grandfather, Black Tom, 10th Earl of Ormond had it, by marrying James Butler, later Duke of Ormond, her second cousin once removed. She had inherited her share of the Ormond estate through her mother, Elizabeth Preston, who was Black Tom's daughter and only surviving child. Her husband had inherited his share from his grandfather Walter Butler, 11th Earl of Ormond, Black Tom's successor in the earldom. Her share was the bigger one and included Kilkenny Castle.
Sir Robert Dillon of Newtown near Trim was an Irish judge of the Tudor era. He served as Chief Justice of the Irish Common Pleas for more than twenty years, despite repeated calls for his removal on the grounds of age and ill health.
Sir Charles MacCarthy, 1st Viscount of Muskerry, also called Cormac Oge, especially in Irish, was from a family of Irish chieftains who were the Lords of Muskerry, related to the Old English through maternal lines. He became the 17th Lord of Muskerry upon his father's death in 1616. He acquired a noble title under English law, becoming 1st Viscount Muskerry and 1st Baron Blarney under letters patent. He sat in the House of Lords in both Irish parliaments of King Charles I. He opposed Strafford, the king's viceroy in Ireland, and in 1641 contributed to his demise by submitting grievances to the king in London. Muskerry died during this mission and was buried in Westminster Abbey.
Sir Lucas Dillon of Loughglynn (1579–1656) was in 1628 one of the negotiators of the Graces; he was MP for Roscommon in the two Irish Parliaments of Charles I. At the Irish Rebellion of 1641 he sided with the rebels and joined the Irish Catholic Confederation, where he served on the Supreme Council.