Question: Who is the paternal grandfather of Hugh Montgomerie, 7Th Earl Of Eglinton?

Knowledge 1: Hugh Montgomerie, 7th Earl of Eglinton
Hugh Montgomerie, 7th Earl of Eglinton (1613–1669), was the son of Alexander Montgomerie, 6th Earl of Eglinton and Anne Livingstone.A student of Glasgow University, 1628; he opposed Charles I's ecclesiastical policy.He was a colonel under Leslie at the Battle of Newburn.He failed to seize Tynemouth in 1640.He was engaged in northern campaign under Middleton in 1646.He was defeated by Huntly at the Battle of Aberdeen (1646), He was disqualified for public service until 1660 for being accessory to the Engagement.He was taken prisoner in 1651 by the English and excepted from Cromwell's Act of Grace in 1654.Hugh married Anne Hamilton in 1631 but she died soon after giving birth to a daughter, Anna Montgomerie.In 1635 he married Mary Leslie.His daughter Lady Margaret married the second Earl of Loudoun and was the mother of Hugh Campbell, 3rd Earl of Loudoun (c. 1675 – 1731). [SEP] Knowledge 2: Alexander Montgomerie, 6th Earl of Eglinton
Alexander Montgomerie, 6th Earl of Eglinton (1588–1661), originally known as Sir Alexander Seton of Foulstruther, was the third son of Robert Seton, 1st Earl of Winton by his wife Lady Margaret Montgomerie, daughter of Hugh Montgomerie, 3rd Earl of Eglinton.In 1612, after spending some time in Paris, and visting the exiled minister John Welsh of Ayr, he succeeded his childless cousin Hugh Montgomerie, 5th Earl of Eglinton, as Earl of Eglinton.The 5th Earl had made a resigned and settled of the earldom and entail on Seton provided Seton took the name and arms of Montgomerie.This was confirmed by King James VI in 1615.Montgomerie's uncle Alexander Seton called the three year struggle for his nephew's earldom "this over langsome and fashious besines of Eglintoun".Montgomerie petitioned against the imposition of Common Prayer Book in Scotland and assisted in the preparations of the National Covenant.He was a Privy Councillor of Scotland in 1641.Montgomerie, who was commonly known as "Greysteel", commanded a Scottish regiment of horse (cavalry) for the English Parliament and distinguished himself at the Battle of Marston Moor (1644).On the execution of Charles I in 1649 he supported the recall of Charles II and the policy of the Marquess of Argyll.In 1651 he was betrayed to Oliver Cromwell and detained in Edinburgh Castle, but afterwards allowed the liberty of Berwick.His estates sequestered for two years, and he was included in Cromwell's Act of Grace.In 1612 Alexander married Anne Livingstone, daughter of Alexander Livingstone, 1st Earl of Linlithgow and Helenor Hay, she had been a lady in waiting to Princess Elizabeth and Anne of Denmark.
Knowledge 1: Hugh Montgomerie, 7th Earl of Eglinton
Hugh Montgomerie, 7th Earl of Eglinton (1613–1669), was the son of Alexander Montgomerie, 6th Earl of Eglinton and Anne Livingstone.A student of Glasgow University, 1628; he opposed Charles I's ecclesiastical policy.He was a colonel under Leslie at the Battle of Newburn.He failed to seize Tynemouth in 1640.He was engaged in northern campaign under Middleton in 1646.He was defeated by Huntly at the Battle of Aberdeen (1646), He was disqualified for public service until 1660 for being accessory to the Engagement.He was taken prisoner in 1651 by the English and excepted from Cromwell's Act of Grace in 1654.Hugh married Anne Hamilton in 1631 but she died soon after giving birth to a daughter, Anna Montgomerie.In 1635 he married Mary Leslie.His daughter Lady Margaret married the second Earl of Loudoun and was the mother of Hugh Campbell, 3rd Earl of Loudoun (c. 1675 – 1731). [SEP] Knowledge 2: 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.
Knowledge 1: Alexander Montgomerie, 6th Earl of Eglinton
Alexander Montgomerie, 6th Earl of Eglinton (1588–1661), originally known as Sir Alexander Seton of Foulstruther, was the third son of Robert Seton, 1st Earl of Winton by his wife Lady Margaret Montgomerie, daughter of Hugh Montgomerie, 3rd Earl of Eglinton.In 1612, after spending some time in Paris, and visting the exiled minister John Welsh of Ayr, he succeeded his childless cousin Hugh Montgomerie, 5th Earl of Eglinton, as Earl of Eglinton.The 5th Earl had made a resigned and settled of the earldom and entail on Seton provided Seton took the name and arms of Montgomerie.This was confirmed by King James VI in 1615.Montgomerie's uncle Alexander Seton called the three year struggle for his nephew's earldom "this over langsome and fashious besines of Eglintoun".Montgomerie petitioned against the imposition of Common Prayer Book in Scotland and assisted in the preparations of the National Covenant.He was a Privy Councillor of Scotland in 1641.Montgomerie, who was commonly known as "Greysteel", commanded a Scottish regiment of horse (cavalry) for the English Parliament and distinguished himself at the Battle of Marston Moor (1644).On the execution of Charles I in 1649 he supported the recall of Charles II and the policy of the Marquess of Argyll.In 1651 he was betrayed to Oliver Cromwell and detained in Edinburgh Castle, but afterwards allowed the liberty of Berwick.His estates sequestered for two years, and he was included in Cromwell's Act of Grace.In 1612 Alexander married Anne Livingstone, daughter of Alexander Livingstone, 1st Earl of Linlithgow and Helenor Hay, she had been a lady in waiting to Princess Elizabeth and Anne of Denmark. [SEP] Knowledge 2: 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.

Answer: Robert Seton, 1st Earl of Winton