Elizabeth Darcy, Countess of Ormond
Elizabeth Butler ("nee" Darcy), Countess of Ormond (3 April 1332 – 24 March 1390) was the wife of Irish peer James Butler, 2nd Earl of Ormond, and the mother of his six children, including James Butler, 3rd Earl of Ormond.
Thomas Butler, 7th Earl of Ormond
Thomas Butler, 7th Earl of Ormond, P.C.( 1426 – 3 August 1515) was the youngest son of James Butler, 4th Earl of Ormond.
He was attainted, but restored by Henry VII' s first Parliament in November 1485, and the statutes made at Westminster, by Edward IV, which declared him and his brothers traitors, were abrogated.
Anne Welles, Countess of Ormond
Anne Butler, Countess of Ormond( née Welles; 1360 – 13 November 1397), was the first wife of Irish noble James Butler, 3rd Earl of Ormond, and the mother of James Butler, 4th Earl of Ormond.
She was the first countess of Ormond to live at Kilkenny Castle, Ireland.
According to Frederick Tupper, Professor of English at the University of Vermont, she was commemorated as" Anelida, Queen of Armenia" in Geoffrey Chaucer's poem" Anelida and Arcite".
James Cornwalsh
James Cornwalsh( died 1441) was an Irish judge who held the office of Chief Baron of the Irish Exchequer.
He was a political figure of considerable importance in fifteenth century Ireland, and a supporter of the Lord Lieutenant of Ireland, James Butler, 4th Earl of Ormond.
He was murdered as a result of a feud over the ownership of Baggotrath Castle, near Dublin.
James Butler, 3rd Earl of Ormond
James Butler, 3rd Earl of Ormond (c. 1359 – 7 September 1405), was a noble in the Peerage of Ireland.
He acceded to the title in 1382 and built Gowran Castle three years later in 1385 close to the centre of Gowran, making it his usual residence, whence his common epithet,
"The Earl of Gowran".
James died in Gowran Castle in 1405 and is buried in St. Mary's Collegiate Church Gowran together with his father James Butler, 2nd Earl of Ormond, his grandfather James Butler, 1st Earl of Ormond and his great great grandfather Edmund Butler, Earl of Carrick and 6th Chief Butler of Ireland.
James the 2nd Earl was usually called The Noble Earl, being a great-grandson, through his mother, Eleanor de Bohun, of King Edward I of England.
James Butler, 4th Earl of Ormond
James Butler, 4th Earl of Ormond (23 May 139323 August 1452) was the son of James Butler, 3rd Earl of Ormond.
He was called 'The White Earl' and was esteemed for his learning.
He was the patron of the Irish literary work, 'The Book of the White Earl'.
His career was marked by his long and bitter feud with the Talbot family.
James FitzGerald, 6th Earl of Desmond
James FitzGerald, 6th Earl of Desmond( d. 1462), called' the Usurper', was the youngest son of Gerald FitzGerald, 3rd Earl of Desmond, and Lady Eleanor, daughter of James Butler, 2nd Earl of Ormond.
Thomas Butler of Cahir
Thomas Butler of Cahir( 1448- 1476) was the grandson of James" Gallda" Butler who was the third son of James Butler, 3rd Earl of Ormond.
He was born and died in Cahir Castle, Tipperary, Ireland.
Sir Richard Butler of Polestown
Sir Richard Butler( 1395 – 1443) of Polestown, County Kilkenny, was the second son of James Butler, 3rd Earl of Ormond, and Anne Welles.
His older brother James inherited the earldom.
Following the extinction of the senior family line, his great- grandson, Piers Butler, became the 8th Earl of Ormond.
Richard was born at Kilkenny Castle and was named in honour of the visiting King Richard II, who had joined his cousin, James Butler, 3rd Earl of Ormond, to campaign against the Irish.
Joan de Beauchamp, Countess of Ormond
Joan Beauchamp, Countess of Ormond( 1396 – 3 or 5 August 1430) was the first wife of James Butler, 4th Earl of Ormond, and the mother of his five children.
Their principal residence was Kilkenny Castle in Ireland.

Question: Who is the paternal grandfather of James Butler, 4Th Earl Of Ormond?
Answer: James Butler, 2nd Earl of Ormond