Alexander Lindsay, 6th Earl of Balcarres
Alexander Lindsay, 6th Earl of Balcarres and" de jure" 23rd Earl of Crawford( 18 January 175227 March 1825) was the son of James Lindsay, 5th Earl of Balcarres.
He was a general in the British Army.
James Mure-Campbell, 5th Earl of Loudoun
James Mure-Campbell, 5th Earl of Loudoun (11 February 1726 – 28 April 1786) was a Scottish aristocrat, soldier and MP.
He was born the only son of Hon.
Sir James Campbell, M.P. of Lawers, Perthshire and Lady Jean Boyle.
He assumed the name of Mure in 1729 on succeeding to the Rowallan estate near Kilmaurs, Ayrshire of his grandmother Jean Mure, the Countess of Glasgow, heiress of the family of Mure of Rowallan.
He inherited the Lawers estate near Perth in 1745 on the death of his father at the Battle of Fontenoy and succeeded his cousin to the title of 5th Earl of Loudoun in 1782.
He served in the army, reaching the rank of Major-General by 1781 and represented Ayrshire in Parliament from 1754 to 1761.
He married Flora Macleod, daughter of John Macleod of Raasay; their only child Flora Mure-Campbell
succeeded to the title as 6th Countess of Loudoun.
James Campbell (British Army officer, died 1745)
Lieutenant-General Sir James Campbell KB, (c. 1680 – 2 May 1745) of Lawers, Perthshire was a British Army officer and a Scottish Whig politician who sat in the House of Commons from 1727 to 1741.
Campbell was the third and youngest son of James Campbell, 2nd Earl of Loudoun and his wife Margaret Montgomerie, daughter of Hugh Montgomerie, 7th Earl of Eglinton.
He was the younger brother of Hugh Campbell, 3rd Earl of Loudoun.
He was commissioned a Captain in the 21st Regiment of Foot in 1702, then was Lieutenant-Colonel in the 2nd Dragoons (later Royal Scots Greys) in 1706.
He served under Marlborough in the War of the Spanish Succession and fought in the Battle of Blenheim.
After the war, he was Colonel of the 9th Regiment of Foot from 1715 to 1717, and of the 2nd Dragoons (later Royal Scots Greys) from 1717 until his death.
Campbell was married by contract dated 29 March 1720 to Lady Jean Boyle, eldest daughter of David Boyle, 1st Earl of Glasgow by his second wife Jean, daughter and heiress of William Mure of Rowallan.
Campbell was returned unopposed as Member of Parliament for Ayrshire at the 1727 British general election.
He was also made Groom of the Bedchamber to King George II in 1727.
He was returned in a contest at the 1734 British general election.
In 1735, he was promoted to Brigadier-General, and in 1738 was appointed Governor of Edinburgh Castle.
He was promoted to Major-General in 1739.
At the 1741 British general election he was defeated at Ayrshire by a combination of the anti-Walpole elements in Ayrshire, backed by the 2nd Duke of Argyll.
Their opposition was because of his connection with the Administration and not on any personal grounds.
He retained both his offices until his death.
In 1742, Campbell was promoted to Lieutenant-General and in the course of the War of the Austrian Succession he accompanied the King to Germany in command of the British cavalry and fought at the battles of Dettingen in 1743, where he was invested as a Knight Commander of the Order of the Bath, and of Fontenoy in 1745, where he lost a leg.
He subsequently died of his wounds on 2 May 1745.
Campbell had two children:
His wife Jean had died on 19 December 1729 and was succeeded in her estate of Rowallan by their son James, who assumed the name of Mure.
On 27 April 1782 he also succeeded his cousin as fifth Earl of Loudoun.
James Lindsay, 5th Earl of Balcarres
James Lindsay, 5th Earl of Balcarres( 14 November 1691 – 20 February 1768) was a Scottish peer, the son of Colin Lindsay, 3rd Earl of Balcarres and Lady Margaret Campbell, daughter of the Earl of Loudoun.
He became the 5th Earl of Balcarres on 25 July 1736 on the death of his brother Alexander Lindsay, 4th Earl of Balcarres.
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.
John Boyle, 5th Earl of Cork
John Boyle, 5th Earl of Cork and 5th Earl of Orrery, FRS( 13 January 1707 – 16 November 1762) was a writer and a friend of Jonathan Swift, Alexander Pope and Samuel Johnson.
The only son of Charles Boyle, 4th Earl of Orrery, and his wife Lady Elizabeth Cecil( 1687 – 1708), daughter of John Cecil, 5th Earl of Exeter.
He was born at Westminster and attended Christ Church, Oxford.
He published a translation of the letters of Pliny the Younger in 1751, and" Remarks on the Life and Writings of Jonathan Swift" in the same year, and the" Memoirs of Robert Carey, 1st Earl of Monmouth".
His" Letters from Italy" was published in 1774 by J. Duncombe.
Simon Abney-Hastings, 15th Earl of Loudoun
Simon Michael Abney- Hastings, 15th Earl of Loudoun( born 29 October 1974), is a British aristocrat living in Australia who is the current holder of the ancient Scottish noble title of Earl of Loudoun.
John Campbell of Shankstown
Colonel John Campbell of Shankstown was a Scottish soldier.
The second son of James Campbell, 2nd Earl of Loudoun and brother of Hugh Campbell, 3rd Earl of Loudoun and Sir James Campbell of Lawers, he sat in the Parliament of Scotland for Ayrshire from 1700 to 1702.
He died without issue.
Flora Mure-Campbell, Marchioness of Hastings
Flora Mure- Campbell, Marchioness of Hastings and 6th Countess of Loudoun( 1780 – 8 January 1840) was a British peer, the second daughter of James Mure- Campbell, 5th Earl of Loudoun and Lady Flora Macleod.
She married Francis Rawdon- Hastings, 2nd Earl of Moira, later the Governor- General of India, Governor of Malta and Marquess of Hastings, on 12 July 1804 and with him had six children: Around 1807 she commissioned the building of Loudoun Castle in Ayrshire, to designs by Archibald Elliot.
Her husband died on 28 November 1826 aboard off Naples, and, following his directions, his right hand was cut off to be buried with his wife when she died.
This wish was complied with, and it now rests clasped with hers in the family vault at Loudoun Kirk.
Archibald Campbell, 5th Earl of Argyll
Archibald Campbell, 5th Earl of Argyll( 1532/ 1537 – 12 September 1573) was a Scottish nobleman, peer, and politician.
He was one of the leading figures in the politics of Scotland during the reign of Mary, Queen of Scots, and the early part of that of James VI.

Question: Who is the paternal grandfather of James Mure-Campbell, 5Th Earl Of Loudoun?
Answer: James Campbell, 2nd Earl of Loudoun