Piers Butler, 8th Earl of Ormond, 1st Earl of Ossory also known as Red Piers, was from the Polestown branch of the Butler family of Ireland. In the succession crisis at the death of Thomas Butler, 7th Earl of Ormond he succeeded to the earldom as heir male, but lost the title in 1528 to Thomas Boleyn. He regained it after Boleyn's death in 1538.
Maurice FitzThomas FitzGerald, 1st Earl of Desmond in Dublin Castle, Dublin, Ireland was an Irish nobleman in the Peerage of Ireland, Captain of Desmond Castle in Kinsale, so-called ruler of Munster, and for a short time Lord Justice of Ireland. Called "Maurice the Great", he led a rebellion against the Crown, but he was ultimately restored to favour.
David Fitz-James de Barry, 18th Baron Barry, 5th Viscount Buttevant (1550–1617), sided initially with fitz Maurice, the rebel, in the 1st Desmond rebellion but changed sides and fought against the rebels. He also fought for the crown in the Nine Years' War.
Sir Walter Butler, 11th Earl of Ormond and 4th Earl of Ossory (1559–1633), succeeded his uncle Black Tom, the 10th earl, in 1614. He was called "Walter of the Beads" because he was a devout Catholic, whereas his uncle had been a Protestant. King James I intervened and awarded most of the inheritance to his uncle's Protestant daughter Elizabeth. Ormond contested the King's decision and was for that insolence detained in the Fleet Prison from 1619 until 1625 when he submitted to the King's ruling. He then found a means to reunite the Ormond estate, by marrying his grandson James, who had been raised a Protestant, to Elizabeth's only daughter.
James Butler, 9th Earl of Ormond and 2nd Earl of Ossory, known as the Lame, was in 1541 confirmed as Earl of Ormond thereby ending the dispute over the Ormond earldom between his father, Piers Butler, 8th Earl of Ormond, and Thomas Boleyn, 1st Earl of Wiltshire. Butler died from poison in London.
George de la Poer Beresford, 1st Marquess of Waterford, KP, PC (Ire), styled Earl of Tyrone from 1763 to 1789, was an Anglo-Irish politician.
Connor O'Brien, 3rd Earl of Thomond also spelt Conor and called Groibleach, or the "long-nailed", contended with his uncle Donnell for the Chieftainship of Clan O'Brien from 1535 to 1565. He was confirmed as 3rd Earl of Thomond in 1558 by the Lord Deputy of Ireland, Thomas Radclyffe, 3rd Earl of Sussex. O'Brien intrigued with fitz Maurice in 1569 during the 1st Desmond Rebellion and fled to France. He returned and was pardoned in 1571, being restored to his lands at the end of the rebellion in 1573.
Katherine FitzGerald, suo jure Viscountess Grandison (1660–1725), was a wealthy Irish heiress, being the only child of Sir John FitzGerald of Dromana, County Waterford. She inherited the Dromana estate in 1664 upon the death of her father. She was married three times; firstly to John Le Poer, 2nd Earl of Tyrone; secondly to Brigadier-General, Hon. Edward FitzGerald-Villiers; and thirdly and lastly to General William Steuart.
Sir Gerald Fitzgerald, 3rd Lord Decies was the son of John Fitzgerald and Ellen, daughter of Maurice FitzGibbon, the White Knight.
Joan Fitzgerald, Countess of Ormond, Countess of Desmond, was an Irish noblewoman and heiress, a member of the Old English FitzGerald family, who were also known as the "Geraldines".
Sir Theobald Butler, 1st Baron Cahir, Caher, or Cahier was the first baron Cahir of the second creation, which occurred in 1583.
Margaret Butler, Countess of Ormond, Countess of Ossory was an Irish noblewoman and a member of the powerful and celebrated FitzGerald dynasty also known as "The Geraldines". She married Piers Butler, 8th Earl of Ormond, by whom she had three sons and six daughters.
John Butler of Kilcash was an Irish landowner and soldier. A younger son of James Butler, 9th Earl of Ormond and brother of Thomas Butler, 10th Earl of Ormond, he received Kilcash Castle as appanage. He fought in the Desmond–Ormond conflict and was badly wounded in 1563, just before the Battle of Affane. He was the start-point of the Kilcash branch of the Ormonds and the father of Walter Butler, 11th Earl of Ormond.
Cormac na Haoine MacCarthy Reagh, 13th Prince of Carbery was an Irish chieftain who owned almost half a million acres in south west Ireland.
James FitzGerald, 6th Earl of Desmond, called 'the Usurper', was a younger son of Gerald FitzGerald, 3rd Earl of Desmond, and Lady Eleanor, daughter of James Butler, 2nd Earl of Ormond.
James fitz John FitzGerald, 13th Earl of Desmond, also counted as the 14th, ruled 22 years, the first 4 years as de facto earl until the death of James FitzGerald, de jure 12th Earl of Desmond, called Court Page, who was murdered by James fitz John's brother Maurice fitz John FitzGerald, called Totane. James fitz John FitzGerald maintained himself in power by skilful diplomacy, avoiding armed conflict and destruction. He was appointed Lord Treasurer of Ireland in 1547.
James fitz Maurice FitzGerald, 10th Earl of Desmond, also counted as the 11th, plotted against King Henry VIII with King Francis I of France in 1523 and with Emperor Charles V in 1528 and 1529.
Helen Burke, Countess Clanricarde, also styled Helen FitzGerald, was brought to France by her mother fleeing the Cromwellian conquest of Ireland, against which her father, the 2nd Earl Muskerry, resisted to the bitter end. In France, she was educated at the abbey of Port-Royal-des-Champs together with her cousin Elizabeth Hamilton. She married three times. All her children were by her second husband, William Burke, 7th Earl of Clanricarde. She was the mother of Ulick Burke, 1st Viscount Galway, Margaret, Viscountess Iveagh, and Honora Sarsfield.
Sir John FitzGerald of Dromana was the last of the FitzGeralds of Dromana. He sat as MP for Dungarvan in the Irish Parliament of 1661–1666.
John de Courcy, 21st Baron Kingsale sat in the House of Lords of the Irish Parliament of 1661–1666.