question: Who is Thomas Watson, 3Rd Earl Of Rockingham's paternal grandfather?
context: [["Lewis Watson, 1st Baron Sondes", ["Lewis Watson, 1st Baron Sondes( 28 November 1728 \u2013 30 March 1795), called Hon. Lewis Monson before 1746 and Hon. Lewis Watson from 1746 to 1760, was a British Whig politician and peer.", "Sondes was the second son of John Monson, 1st Baron Monson, and Lady Margaret Watson, youngest daughter of Lewis Watson, 1st Earl of Rockingham.", "He was educated at Westminster School between 1737 and 1745.", "He assumed the surname of Watson in 1746 after inheriting the estates of his cousin, Thomas Watson, 3rd Earl of Rockingham.", "Watson afterwards went on the Grand Tour with his second cousin the Earl of Malton( later Marquess of Rockingham) and his third cousin Thomas Pelham.", "While abroad in Europe in 1750, his third cousin once removed, the Duke of Newcastle, arranged for Watson to be returned in April as Member of Parliament for Boroughbridge in place of the Earl of Dalkeith, who had died.", "That autumn, the three kinsmen visited Hanover, where Newcastle presented them, together with Viscount Downe and three other young Englishmen, to George II of Great Britain, who was holding court in the Electorate.", "The king was not pleased and snubbed the party when they were presented.", "On 12 October 1752, he married his third cousin Grace Pelham( d. 30 July 1777), the third surviving daughter and co-heiress of Prime Minister Henry Pelham, Newcastle's brother.", "They had four sons:", "In February 1754, his father- in- law procured for him the lucrative sinecure of auditor of the imprests, in succession to William Benson.", "The by-election that followed his appointment was not contested.", "In the 1754 general election that spring, Newcastle had him returned for Boroughbridge again; Watson also led the poll in Kent, where he and Robert Fairfax stood as Whigs and defeated Sir Edward Dering, one of the sitting Tory members.", "Watson chose to sit for Kent.", "However, he aspired to the House of Lords, as he enjoyed the estates of the extinct earldom of Rockingham and could well afford to support a title.", "Nor did he wish to stand for the county again.", "Newcastle pressed his claims strongly on the King, and was ultimately successful: Watson was created Baron Sondes, of Lees Court in the Peerage of Great Britain on 22 May 1760 and vacated his seat in the Commons.", "In 1785, the office of auditor of the imprests was abolished, and he received an annuity of \u00a3 7,000 a year for life in compensation.", "He died on 30 March 1795 and was succeeded in his title by his eldest son, Lewis Watson.", "Sondes was buried at Rockingham, Northamptonshire."]], ["Edward Watson, Viscount Sondes", ["Edward Watson, Viscount Sondes (3 July 1686 \u2013 20 March 1722) of Lees Court, Sheldwich, Kent, and Park Place, London, was a British Whig politician who sat in the House of Commons between 1708 and 1722.", "Watson was the eldest son of Lewis Watson, 1st Earl of Rockingham and his wife Catherine Sondes, daughter of George Sondes, 1st Earl of Feversham.", "He matriculated at Merton College, Oxford on 1 June 1703, aged 16 and travelled abroad to Germany in 1707.", "Watson arrived back from Germany in 1708, in time to be elected as a Whig Member of Parliament for Canterbury at the 1708 British general election.", "He proposed a motion on 25 January 1709 for an address to the Queen that she should consider remarrying.", "He also supported the naturalization of the Palatines.", "He was appointed to a committee to draft a bill to limit the time allowed for public mourning, since this was felt to be having an adverse effect on Canterbury\u2019s silk trade.", "He also voted for the impeachment of Dr Sacheverell and possibly in consequence he lost his seat at the 1710 British general election.", "He was returned unopposed as MP for New Romney at a by-election on 20 April 1713.", "Following his father's elevation as Earl of Rockingham in 1714, he was styled Viscount Sondes.", "In 1718, he went over to the Opposition and in 1719 he was appointed a Gentleman of the Bedchamber to the Prince of Wales.", "Watson died in 1722, predeceasing his father by 2 years.", "He married Catherine Tufton, eldest daughter of Thomas Tufton, 6th Earl of Thanet in 1709, and had three sons and a daughter:\nIn 1729 his widow and her four sisters became co-heiresses to the Barony of Clifford.", "The abeyance was terminated in 1734 for the third sister Margaret, wife of Lord Lovel, but following her death without surviving issue in 1775 the barony was restored in favour of Viscount Sondes' grandson Edward Southwell, 20th Baron Clifford."]], ["Ralph Neville, 3rd Earl of Westmorland", ["Ralph Neville, 3rd Earl of Westmorland( c. 1456 \u2013 6 February 1499) was an English peer.", "He was the grandfather of Ralph Neville, 4th Earl of Westmorland."]], ["Thomas Watson, 3rd Earl of Rockingham", ["Thomas Watson, 3rd Earl of Rockingham (30 December 1715 \u2013 26 February 1746), styled Hon.", "Thomas Watson until 1745, was an English nobleman and politician.", "He represented Canterbury in the House of Commons and was appointed Lord Lieutenant of Kent after succeeding to the earldom, but died shortly thereafter.", "The second son of Edward Watson, Viscount Sondes, Watson entered Eton College in 1725 and Lincoln's Inn in 1732.", "In the 1741 British general election, he stood for Canterbury as an opposition Whig.", "Watson and the Tory", "Thomas Best ousted the incumbent Sir Thomas Hales, a Whig supporter of Walpole's administration.", "He continued in opposition to successive governments during his tenure in the House of Commons, which terminated in 1745 when he became Earl of Rockingham on the death of his elder brother Lewis.", "Despite his politics, he was appointed Lord Lieutenant of Kent in succession to his brother, but did not long survive the appointment, dying on 26 February 1746.", "Rockingham never married, and upon his death, the titles of Earl of Rockingham, Viscount Sondes, and Baron Throwley became extinct.", "He was succeeded as Baron Rockingham by Thomas Watson-Wentworth, 1st Earl of Malton, his first cousin once removed.", "Rockingham left his estate to his first cousin Lewis Monson, who thereafter adopted the surname of Watson."]], ["William d'Aubigny, 4th Earl of Arundel", ["William d' Aubigny, 4th Earl of Arundel, also known as William de Albini V( b. 1203 \u2013 before 7 August 1224) was the eldest son of William d'Aubigny, 3rd Earl of Arundel and Mabel of Chester( born c. 1173), daughter of Hugh de Kevelioc, 3rd Earl of Chester and Bertrade de Montfort of \u00c9vreux.", "He became Earl of Arundel and Earl of Sussex on 30 March 1221.", "He was buried at Wymondham Abbey, Norfolk.", "There is no evidence that he married or had children.", "He was the Chief Butler of England and was succeeded by his brother, Hugh."]], ["John Gordon, 3rd Earl of Aboyne", ["John Gordon, 3rd Earl of Aboyne( born April 1700, died 7 April 1732) was the son of Charles Gordon, 2nd Earl of Aboyne and Elizabeth Lyon.", "He succeeded his father as 3rd Earl of Aboyne in April 1702.", "On his death in 1732 he was succeeded in his titles by his eldest son."]], ["Lewis Watson, 2nd Earl of Rockingham", ["Lewis Watson, 2nd Earl of Rockingham( c. 1714 \u2013 4 November 1745) was a British peer, styled Viscount Sondes from 1722 to 1724.", "He was born the eldest son of Edward Watson, Viscount Sondes and Lady Catherine Tufton, the daughter of Thomas Tufton, 6th Earl of Thanet and Lady Catherine Cavendish.", "His father having predeceased his own father, Lewis inherited the earldom from his grandfather, Lewis Watson, 1st Earl of Rockingham, in 1724.", "He was Lord Lieutenant of Kent from 1737 to his death in 1745.", "He was married to his first cousin Catherine, daughter of Sir Robert Furnese.", "After he died in 1745, she remarried to Francis, Earl of Guildford.", "Lewis Watson died childless and was succeeded by his brother, Thomas."]], ["John Lindsay, 19th Earl of Crawford", ["John Lindsay, 19th Earl of Crawford and 3rd Earl of Lindsay( died December 1713) was a Scottish peer and politician."]], ["Gilbert Talbot, 3rd Baron Talbot", ["Gilbert Talbot, 3rd Baron Talbot( c. 1332\u20131387) was an English nobleman and soldier.", "He was the grandfather of John Talbot, 1st Earl of Shrewsbury."]], ["Kaya Alp", ["Kaya Alp was, according to Ottoman tradition, the son of K\u0131z\u0131l Bu\u011fa and the father of Suleyman Shah, who was, in turn, the grandfather of Ertu\u011frul, and the great grandfather of the Ottoman Empire founder, Osman I."]]]
supporting_facts: [["Thomas Watson, 3rd Earl of Rockingham", 3], ["Edward Watson, Viscount Sondes", 1]]
evidences: [["Thomas Watson, 3rd Earl of Rockingham", "father", "Edward Watson, Viscount Sondes"], ["Edward Watson, Viscount Sondes", "father", "Lewis Watson, 1st Earl of Rockingham"]]
answer: Lewis Watson, 1st Earl of Rockingham