Question: Who is the paternal grandfather of Edward Harley, 5Th Earl Of Oxford And Earl Mortimer?

Knowledge 1: Edward Harley, 5th Earl of Oxford and Earl Mortimer
Edward Harley, 5th Earl of Oxford and Earl Mortimer (20 February 1773 – 28 December 1848) was an English nobleman.Harley was the son of John Harley (dean of Windsor) and Roach Vaughan.Edward succeeded to the titles and estates (including the Harley family seat at Brampton Bryan) of his father's elder brother Edward Harley, 4th Earl of Oxford and Earl Mortimer on the 4th Earl's death without issue in 1790.In 1803 Henry Bickersteth became the Earl's medical attendant whilst the Earl was on a tour of Italy, staying with him until 1805.Edward became Bickersteth's friend and patron and in 1835 Bickersteth married the earl's eldest daughter.In 1804 Edward sold the Ewyas Lacy tithes by auction.He commissioned work from the architect Robert Smirke. [SEP] Knowledge 2: John Harley (bishop, died 1788)
John Harley (29 September 1728 – 7 January 1788) was a British bishop.Harley was the second son of Edward Harley, 3rd Earl of Oxford and Earl Mortimer.He was Archdeacon of Shropshire from 1760 to 1769 and then Archdeacon of Hereford from 1769 to 1787.He was Dean of Windsor, Registrar of the Order of the Garter and briefly, at the end of his life, the Bishop of Hereford.His son Edward (by his wife Roach Vaughan, daughter of Gwynne Vaughan of Trebarry, Radnorshire) succeeded Harley's elder brother (Edward) as 5th Earl of Oxford.
Knowledge 1: Edward Harley, 5th Earl of Oxford and Earl Mortimer
Edward Harley, 5th Earl of Oxford and Earl Mortimer (20 February 1773 – 28 December 1848) was an English nobleman.Harley was the son of John Harley (dean of Windsor) and Roach Vaughan.Edward succeeded to the titles and estates (including the Harley family seat at Brampton Bryan) of his father's elder brother Edward Harley, 4th Earl of Oxford and Earl Mortimer on the 4th Earl's death without issue in 1790.In 1803 Henry Bickersteth became the Earl's medical attendant whilst the Earl was on a tour of Italy, staying with him until 1805.Edward became Bickersteth's friend and patron and in 1835 Bickersteth married the earl's eldest daughter.In 1804 Edward sold the Ewyas Lacy tithes by auction.He commissioned work from the architect Robert Smirke. [SEP] Knowledge 2: Edward Harley, 4th Earl of Oxford and Earl Mortimer
Edward Harley, 4th Earl of Oxford and Earl Mortimer( 2 September 1726 – 11 October 1790), styled Lord Harley from 1741 to 1755, was a British peer and Tory politician.Harley was the eldest son of Edward Harley, 3rd Earl of Oxford and Earl Mortimer and Martha Morgan, daughter of Welsh politician William Morgan.His two younger brothers were John Harley, Dean of Windsor and then Bishop of Hereford; and the politician Thomas Harley, who was Lord Mayor of London and also sat in Parliament.He was educated at Westminster School( 1735 – 44); and then Christ Church, Oxford, graduating with a Doctor of Civil Law in 1748.Harley was elected as MP for Herefordshire in at the 1747 general election, even though he was only 20 years old.Prior to the election, Lord Foley wrote to Harley's father," As he is under age I am in great fear lest some trick should be played on him on the day of election ... which if it should happen I think would be of the most evil consequence to your family as well as to the interest of the county."He returned unopposed and took a seat on the treasury board, serving until in 1755 he succeeded to his father's titles and estates, including the family seat of Brampton Bryan Castle and Hall.He was High Steward of Hereford from 1755, a Lord of the Bedchamber from 1760, and Lord Lieutenant of Radnorshire from 1766, all until his death.He was also Harleian Trustee at the British Museum from 1755 until his death.In 1751, he married heiress Susannah Archer, daughter of William Archer, who brought a dowry of £ 50,000.He died at Brampton Bryan Hall at the age of 64.As he had no children, his titles and estates passed to his nephew Edward Harley.
Knowledge 1: Edward Harley, 4th Earl of Oxford and Earl Mortimer
Edward Harley, 4th Earl of Oxford and Earl Mortimer( 2 September 1726 – 11 October 1790), styled Lord Harley from 1741 to 1755, was a British peer and Tory politician.Harley was the eldest son of Edward Harley, 3rd Earl of Oxford and Earl Mortimer and Martha Morgan, daughter of Welsh politician William Morgan.His two younger brothers were John Harley, Dean of Windsor and then Bishop of Hereford; and the politician Thomas Harley, who was Lord Mayor of London and also sat in Parliament.He was educated at Westminster School( 1735 – 44); and then Christ Church, Oxford, graduating with a Doctor of Civil Law in 1748.Harley was elected as MP for Herefordshire in at the 1747 general election, even though he was only 20 years old.Prior to the election, Lord Foley wrote to Harley's father," As he is under age I am in great fear lest some trick should be played on him on the day of election ... which if it should happen I think would be of the most evil consequence to your family as well as to the interest of the county."He returned unopposed and took a seat on the treasury board, serving until in 1755 he succeeded to his father's titles and estates, including the family seat of Brampton Bryan Castle and Hall.He was High Steward of Hereford from 1755, a Lord of the Bedchamber from 1760, and Lord Lieutenant of Radnorshire from 1766, all until his death.He was also Harleian Trustee at the British Museum from 1755 until his death.In 1751, he married heiress Susannah Archer, daughter of William Archer, who brought a dowry of £ 50,000.He died at Brampton Bryan Hall at the age of 64.As he had no children, his titles and estates passed to his nephew Edward Harley. [SEP] Knowledge 2: Edward Harley, 3rd Earl of Oxford and Earl Mortimer
Edward Harley, 3rd Earl of Oxford and Earl Mortimer( c. 1699 – 11 April 1755, in Bath) was a British peer and Member of Parliament.Harley was the son of Edward Harley and his wife Sarah Foley and was educated at Westminster School and Christ Church, Oxford.He succeeded his father in 1735 to the Eywood estate at Titley, Herefordshire and his cousin Edward Harley, 2nd Earl of Oxford and Earl Mortimer in 1741 to the earldom and the family seat at Brampton Bryan.One of his first acts on succeeding his brother was to auction off his predecessor's art and coin collection through the auctioneer Cock, at an art sale held under the Piazza, Covent Garden, on 8 March 1741/ 2 and the five following days, with six more days being required by the coins.Nearly all the leading men of the day, including Horace Walpole, attended or were represented at this sale, and the prices varied from five shillings for an anonymous bishop's" head" to 165 guineas for van Dyck's group of" Sir Kenelm Digby, lady, and son".He was returned to Parliament as the member for Herefordshire in 1727, sitting until 1741.

Answer: Edward Harley, 3rd Earl of Oxford and Earl Mortimer