Question: Jacob Rees-Mogg is a British Politician born in 1969, who was his grandfather? 

full_context: Document 1: Sir William Mount, 1st Baronet: Sir William Arthur Mount, 1st Baronet CBE (Hartley, Hampshire, 3 August 1866 – 8 December 1930) was a British Conservative Party politician and Member of Parliament for the Newbury constituency. He is the great-grandfather of Conservative politician David Cameron, who was Prime Minister of the United Kingdom from 2010 to 2016.
Document 2: Theresa Villiers: Theresa Anne Villiers (pronounced "Villers"; born 5 March 1968 in London) is a British Conservative Party politician.
Document 3: Conservative government, 1957–1964: The Conservative government of the United Kingdom that began in 1957 and ended in 1964 consisted of three ministries: the first Macmillan ministry, second Macmillan ministry, and then the Douglas-Home ministry. They were led by Harold Macmillan and Sir Alec Douglas-Home, who were appointed respectively by Queen Elizabeth II.
Document 4: Conservative Party (UK): The Conservative Party, officially the Conservative and Unionist Party, is a centre-right political party in the United Kingdom. It is currently the governing party, having been so since the 2010 general election, where a coalition government with the Liberal Democrats was formed. In 2015, the Conservatives led by David Cameron won a surprise majority and formed the first Conservative majority government since 1992. However, the 2017 snap election on Thursday 8 June resulted in a hung parliament, and the Conservatives lost their parliamentary majority. They are reliant on the support of a Northern Irish political party, the Democratic Unionist Party (DUP), in order to command a majority in the House of Commons through a confidence-and-supply deal. The party leader, Theresa May, has served as both Leader of the Conservative Party and Prime Minister since 13 July 2016. It is the largest party in local government with 9,237 councillors. The Conservative Party is one of the two major contemporary political parties in the United Kingdom, the other being its modern rival, the Labour Party. The Conservative Party's platform involves support for free market capitalism, free enterprise, fiscal conservatism, a strong national defence, deregulation, and restrictions on trade unions.
Document 5: Jacob Rees-Mogg: Jacob William Rees-Mogg (born 24 May 1969) is a British Conservative politician, who was first elected as the Member of Parliament for North East Somerset at the 2010 general election.
Document 6: David Cameron: David William Donald Cameron ( ; born 9 October 1966) is a British politician who was Prime Minister of the United Kingdom from 2010 to 2016 and Leader of the Conservative Party from 2005 to 2016. He was Member of Parliament (MP) for Witney from 2001 to 2016. Cameron identifies as a One-Nation Conservative, and has been associated with both economically liberal and socially liberal policies.
Document 7: Muriel Gammans: Ann Muriel, Lady Gammans (née Paul; 6 March 1898 – 28 December 1989) was a British Conservative politician. She was elected Member of Parliament for Hornsey at a 1957 by-election following the death of her husband Sir David Gammans, and served until her retirement at the 1966 general election.
Document 8: Frank Giles: Frank Thomas Robertson Giles (born 31 July 1919) was editor of the British "Sunday Times" newspaper from 1981–83, having served as deputy editor under his predecessor Harold Evans. He stood down in the wake of the Hitler Diaries scandal. He is the son of Col Frank Lucas Netlam Giles OBE (d. 1930) and Elgiva Mary Ackland-Allen (1890-1970), who were married in 1916 in the bride's home parish of St. Hilary in the Vale of Glamorgan. The Ackland-Allen family of St. Hilary Manor and Elgiva's maternal ancestors, the Bearcrofts, are well documented in "The Longcrofts: 500 Years of a British Family" by James Phillips-Evans (2012). Frank married Lady Katherine Sackville ('Kitty') in 1946 and they had three children, the youngest of whom, Belinda, is married to television broadcaster David Dimbleby.
Document 9: Chris Skidmore: Christopher James Skidmore, {'1': ", '2': ", '3': ", '4': "} (born 17 May 1981) is a British politician, author, and historian. He has served since 2010 as the Conservative Member of Parliament (MP) for Kingswood, South Gloucestershire, and in 2015 became Parliamentary Private Secretary to the Chancellor of the Exchequer. When Theresa May became Prime Minister in 2016 he was appointed Parliamentary Secretary at the Cabinet Office, where he is described as Minister for the Constitution.
Document 10: Thomas de Multon, 1st Baron Multon of Gilsland: Lord Thomas de Moulton (1276–1322) was the first Baron Multon of Gilsland. He married Eleanor de Burgh, daughter of Richard de Burgh 2nd Earl of Ulster; Richard's other daughter, Elizabeth de Burgh, married King Robert the Bruce of Scotland. On 26 August 1307, Thomas de Moulton was summoned to parliament as Baron Moulton of Gilsland, the only creation of that title in the Peerage of England. He was engaged in many of the Scottish wars and subsequently obtained many immunities from the crown in the shape of grants for fairs and markets upon his many manors. He died on 26 November 1313 leaving an only daughter and heiress, Margaret, who inherited the title and estates and was later nicknamed the "Flower of Gillesland". She married Ranulph (Ralph) de Dacre, whom she married because she found him chivalrous. Her father originally opposed the match, but relented when he discovered that the Dacre family was equal to his own in wealth and power, according to the Moulton Annals. Ranulph was later summoned to parliament as Lord Dacre in 1321. The title and estates after Margaret's death in 1361 were inherited by the Dacre family.
Document 11: Andrea Leadsom: Andrea Jacqueline Leadsom (pronounced ; "née" Salmon; born 13 May 1963) is a British Conservative Party politician who became Leader of the House of Commons on 11 June 2017. She previously served as Secretary of State for Environment, Food and Rural Affairs from 14 July 2016, having held the post of Minister of State for Energy at the Department of Energy and Climate Change since May 2015 and the posts of Economic Secretary to the Treasury and City Minister from April 2014. She has been a Member of Parliament representing South Northamptonshire since 2010.
Document 12: Boris Johnson: Alexander Boris de Pfeffel Johnson (born 19 June 1964), known as Boris Johnson, is a British politician, popular historian and journalist. He has served as Secretary of State for Foreign and Commonwealth Affairs since 2016 and as Member of Parliament (MP) for Uxbridge and South Ruislip since 2015. He had previously been MP for Henley from 2001 to 2008 and Mayor of London from 2008 to 2016. A member of the Conservative Party, Johnson identifies as a one-nation conservative and has been associated with both economically and socially liberal policies.
Document 13: Thomas Richard Morris: Thomas Richard Morris JP was a British Conservative politician and magistrate who served as Mayor of St Pancras from 1961 until 1962. Active in London's politics from at least the 1950s, Morris was an active member of the St Pancras Borough Council by the early 1960s, assisting in cultural and infrastructural projects, soon securing the mayoralty of the area. Following his tenure, he stood for election to the fledgling Camden London Borough Council, successful at his second attempt in 1968. Representing the Kings Cross ward, his political career did not extend into the 1970s. Morris' daughter Gillian Shakespeare married prominent journalist William Rees-Mogg in 1962, subsequently mothering future political figures Annunziata and Jacob.
Document 14: John Major: Sir John Major, {'1': ", '2': ", '3': ", '4': "} (born 29 March 1943) is a British politician who was Prime Minister of the United Kingdom and Leader of the Conservative Party from 1990 to 1997. He served as Foreign Secretary and then Chancellor of the Exchequer in the Thatcher Government from 1989 to 1990, and was the Member of Parliament (MP) for Huntingdon from 1979 until he retired in 2001. Since Margaret Thatcher's death in 2013, he is the oldest living former Prime Minister.
Document 15: Harold Macmillan: Maurice Harold Macmillan, 1st Earl of Stockton, {'1': ", '2': ", '3': ", '4': "} (10 February 1894 – 29 December 1986) was a British statesman of the Conservative Party who served as Prime Minister of the United Kingdom from 1957 to 1963. Nicknamed "Supermac", he was known for his pragmatism, wit and unflappability.
ground_truth: Thomas Richard Morris