Francis Douglas, 8th Earl of Wemyss
Francis Wemyss Charteris Douglas, 8th Earl of Wemyss, 4th Earl of March( 15 April 177228 June 1853), known as the Earl of March from 1810 to 1826 and as the Earl of Wemyss and March from 1826 to 1853, was a Scottish peer.
James Ogilvy, 4th Earl of Findlater
James Ogilvy, 4th Earl of Findlater and 1st Earl of Seafield,( 11 July 166419 August 1730) was a Scottish politician.
Donough MacCarty, 1st Earl of Clancarty
Donough MacCarthy, 1st Earl of Clancarty, 2nd Viscount Muskerry( 1594 – 1665), called Donnchadh Mac Cárthaigh in Irish, was a leader of the Irish Confederation.
He led the Confederates' Munster army during most of the Irish Confederate Wars and the Cromwellian conquest of Ireland.
He belonged to the moderate faction, which wanted to collaborate with the royalists against the Commonwealth and the Covenanters.
He was one of the last to surrender.
In 1658, in exile, Charles II created him Earl of Clancarty.
He recovered his lands at the Restoration.
William Cuffe, 4th Earl of Desart
William Ulick O'Connor Cuffe, 4th Earl of Desart( 10 July 1845 – 15 September 1898).
He succeeded to the title of 6th Baron Desart, 4th Viscount Desart and 4th Earl of Desart on the 1 April 1865
William Trench, 3rd Earl of Clancarty
William Thomas Le Poer Trench, 3rd Earl of Clancarty, 2nd Marquess of Heusden (21 September 1803 – 26 April 1872), styled Viscount Dunlo between 1805 and 1837, was an Irish peer, as well a nobleman in the Dutch nobility.
He was educated at St John's College, Cambridge.
Trench was born in Castleton, County Kildare, Ireland the son of Richard Trench, 2nd Earl of Clancarty and Henrietta Margaret Staples.
On 8 September 1832, he married Lady Sarah Juliana Butler.
They had six children.
Richard Chenevix Trench
Richard Chenevix Trench( Richard Trench until 1873; 9 September 1807 – 28 March 1886) was an Anglican archbishop and poet.
Henry Monck, 1st Earl of Rathdowne
Henry Stanley Monck, 1st Earl of Rathdowne and 2nd Viscount Monck( 26 July 1785 – 20 September 1848), was the son of Charles Monck, 1st Viscount Monck, and Anne Quin.
On 28 July 1806, he married Lady Frances Mary Trench, daughter of William Trench, 1st Earl of Clancarty, and his wife Anne, Countess of Clancarty(" née" Gardiner).
They had 11 daughters.
As he died without male heirs, the earldom became extinct and the viscountcy was inherited by his brother Charles.
Richard Trench, 4th Earl of Clancarty
Richard Somerset Le Poer Trench, 4th Earl of Clancarty, 3rd Marquess of Heusden (13 January 1834 – 29 May 1891), styled Viscount Dunlo between 1837 and 1872, was an Irish peer, as well a nobleman in the Dutch nobility.
Trench was born in Dublin, Ireland, the son of William Trench, 3rd Earl of Clancarty and Lady Sarah Juliana Butler.
On 29 November 1866 he married Lady Adeliza Georgiana Hervey, daughter of Frederick William Hervey, 2nd Marquess of Bristol and Lady Katherine Isabella Manners.
They had three children.
John Manners, 4th Earl of Rutland
John Manners, 4th Earl of Rutland( c. 1559 – 24 February 1588) was the son of Henry Manners, 2nd Earl of Rutland, and Lady Margaret Neville, daughter of Ralph Neville, 4th Earl of Westmorland.
George Talbot, 4th Earl of Shrewsbury
Sir George Talbot, 4th Earl of Shrewsbury, 4th Earl of Waterford, 10th Baron Talbot, KG, KB, PC( c. 1468 – 26 July 1538) was the son of John Talbot, 3rd Earl of Shrewsbury, and Lady Catherine Stafford, daughter of the 1st Duke of Buckingham.
He also held the subsidiary titles of 13th Baron Strange of Blackmere and 9th Baron Furnivall.

Question: Where did Richard Trench, 4Th Earl Of Clancarty's father study?
Answer: St John's College