William St George Nugent, 10th Earl of Westmeath
William St George Nugent, 10th Earl of Westmeath, (28 November 1832 – 31 May 1883), styled Lord Delvin from 1871 to 1879, was an Anglo-Irish peer.
A son of Anthony Francis Nugent, 9th Earl of Westmeath and Anne Catherine Daly, Nugent was educated at Oscott College, Sutton Coldfield, Warwickshire, England.
On 14 May 1852, he purchased an ensigncy in the 9th Regiment of Foot.
He was promoted to lieutenant on 6 June 1854, and served in the Crimean War from 27 November 1854, fighting in the Siege of Sevastopol, including the unsuccessful assault on the Great Redan in June.
He bought a captaincy in the regiment on 13 June 1856, and retired from the Army in May 1861.
He held the office of High Sheriff of County Galway in 1875.
He succeeded to his father's peerages on 12 May 1879.
He married Emily Margaret Blake of Furbo, County Galway, in July 1866 and had issue:
John Talbot, 10th Earl of Shrewsbury
John Talbot, 10th Earl of Shrewsbury, 10th Earl of Waterford( 1601 – 8 February 1654), was an English nobleman.
George Nugent, 1st Marquess of Westmeath
George Thomas John Nugent, 1st Marquess of Westmeath( 17 July 1785 – 5 May 1871), styled Lord Delvin between 1792 and 1814 and known as The Earl of Westmeath between 1814 and 1821, was an Irish peer.
Richard Nugent, 3rd Earl of Westmeath
Richard Nugent, 3rd Earl of Westmeath, born before 1669, died April 1714, was an Irish peer and Roman Catholic monk.
Nugent was the eldest son of Christopher Nugent, Lord Delvin and Mary Butler( a daughter of Colonel Hon. Richard Butler and Lady Frances Tuchet).
He succeeded his grandfather, Richard Nugent, 2nd Earl of Westmeath, as 3rd Earl.
However, he was a Capuchin friar based in France and so had no descendants.
He was succeeded by his brother, Thomas Nugent, 4th Earl of Westmeath.
Thomas Butler, 10th Earl of Ormond
Thomas Butler, 10th Earl of Ormonde, 3rd Earl of Ossory, Viscount Thurles( c. 153122 November 1614), was an Irish peer and the son of James Butler, 9th Earl of Ormond and Lady Joan Fitzgerald daughter and heiress- general of James FitzGerald, 10th Earl of Desmond.
He was Lord Treasurer of Ireland and a very prominent personage during the latter part of the 16th century.
Ralph Neville, 3rd Earl of Westmorland
Ralph Neville, 3rd Earl of Westmorland( c. 1456 – 6 February 1499) was an English peer.
He was the grandfather of Ralph Neville, 4th Earl of Westmorland.
Anthony Francis Nugent, 9th Earl of Westmeath
Anthony Francis Nugent, 9th Earl of Westmeath, (1 November 1805 – 12 May 1879) was an Irish peer.
Nugent was a descendant of Richard Nugent, 2nd Earl of Westmeath, but the title had been carried by a different line of the Nugents, with his own family taking the title Baron Nugent of Riverston.
He was the son of William Thomas Nugent, 5th Baron Nugent of Riverston and Catherine Bellew of Mount Bellew, County Galway.
On the death of his kinsman, George Nugent, 1st Marquess of Westmeath, he succeeded as the 9th Earl though the marquessate became extinct.
On 5 May 1871, he simultaneously became the 14th Baron Delvin and 9th Earl of Westmeath.
He married Anne Catherine Daly, a daughter of Malachy Daly of Raford, Kiltullagh, County Galway, and a descendant of Dermot Ó Daly of Killimordaly, County Galway.
Their children were:
Alexander Leslie-Melville, 10th Earl of Leven
Alexander Leslie- Melville, 10th Earl of Leven, 9th Earl of Melville( 1817 – 1889)
He was the son of John Leslie- Melville, 9th Earl of Leven.
He was a partner in Williams.
Deacon& Co, and was a Representative Peer for Scotland( Conservative) from 1880 to 1889.
He was succeeded by his half- brother Ronald Ruthven Leslie- Melville, 11th Earl of Leven, 10th Earl of Melville( 1835 – 1906).
William Thomas Nugent, 5th Baron Nugent of Riverston
William Thomas Nugent, 5th Baron Nugent of Riverston( 29 September 1773 – 6 September 1851).
A descendant of Richard Nugent, 2nd Earl of Westmeath( died 1641) and a son of Anthony Nugent, 4th Baron Nugent of Riverston( 1730- 1814), Nugent styled himself 5th Baron Nugent of Riverston upon his father's death in 1814.
In July 1839 he claimed the title but the House of Lords Privileges Committee adjourned the issue, declaring it" sine die".
However, his eldest son, Anthony( 1805 – 79) went on to become the 9th Earl of Westmeath, inheriting it from his kinsman, George Nugent, 1st Marquess of Westmeath.
Nugent married Catherine Bellew of Mount Bellew, County Galway, and had issue:
Christopher St George
Christopher St George JP DL( 1812 – 13 November 1877) was an Irish Member of Parliament.
He was son of Arthur French St George by his wife Lady Harriet, daughter of William St Lawrence, 2nd Earl of Howth.
His paternal grandfather, Christopher French, had adopted the name St George to commemorate his descent from the Barons St George.
He was first elected to represent County Galway on 11 August 1847 during the general election of that year.
He was not re-elected at the next general election in 1852.

Question: Who is the paternal grandfather of William St George Nugent, 10Th Earl Of Westmeath?
Answer: William Thomas Nugent, 5th Baron Nugent of Riverston