question: Who is Sir Mordaunt Martin, 4Th Baronet's paternal grandfather?
context: [["Fred Le Deux", ["Frederick\" Fred\" Le Deux( born 4 December 1934) was an Australian rules footballer who played with Geelong in the Victorian Football League( VFL).", "He is the grandfather of Tom Hawkins."]], ["Thomas Gladstones", ["Thomas Gladstones( 3 June 1732 \u2013 12 May 1809) was a Scottish merchant and philanthropist.", "He was the father of Sir John Gladstone and the grandfather of the British prime minister William Ewart Gladstone."]], ["Henry Krause", ["Henry J.\" Red\" Krause, Jr.( August 28, 1913 \u2013 February 20, 1987) was an American football offensive lineman in the National Football League for the Brooklyn Dodgers and the Washington Redskins.", "He played college football at St. Louis University.", "He is the grandfather of Jennifer Krause", "He is the great grandfather of Payton Hoeing"]], ["Sir Mordaunt Martin, 4th Baronet", ["Sir Mordaunt Martin, 4th Baronet (c. 1740 \u2013 24 September 1815) was son of Sir Roger Martin, 3rd Baronet and Sophia Mordaunt.", "He inherited his baronetcy from his father, who was the third Martin Baronet, upon his death in 1762.", "He lived in Burnham Market in Norfolk"]], ["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."]], ["Sir Armine Wodehouse, 5th Baronet", ["Sir Armine Wodehouse, 5th Baronet( c. 1714 \u2013 21 May 1777), was a British Tory Member of Parliament.", "Wodehouse was the son of Sir John Wodehouse, 4th Baronet, and Mary Fermor.", "His unusual first name reflects his connection with the Airmine Baronets through his grandmother Anne Airmine.", "He was elected to the House of Commons for Norfolk in 1737, a seat he held until 1768.", "In 1754 he succeeded his father in the baronetcy and to the family seat of Kimberley Hall in Norfolk.", "Wodehouse married Letitia Bacon, daughter of Sir Edmund Bacon, 6th Baronet, in 1738.", "He died in 1777 and was succeeded in the baronetcy by his eldest son John, who was created Baron Wodehouse in 1797 and who was the great- grandfather of statesman John Wodehouse, 1st Earl of Kimberley.", "Wodehouse's second son Reverend Philip Wodehouse( 1745- 1811) was the great- grandfather of the author P. G. Wodehouse while his third son Thomas Wodehouse was the grandfather of the colonial administrator Sir Philip Wodehouse."]], ["Sir Roger Martin, 3rd Baronet", ["Sir Roger Martin, 3rd Baronet (c. 1689 - 12 June 1762) was son of Sir Roger Martin, 2nd Baronet and Anna-Marie Harvey.", "He inherited his baronetcy from his father, who was the second Martin Baronet of Long Melford, upon his death in 1762."]], ["Abd al-Muttalib", ["Abd al- Muttalib Shaybah ibn Hashim( c. 497 \u2013 578) was the grandfather of Islamic prophet Muhammad."]], ["Sir Roger Martin, 5th Baronet", ["Sir Roger Martin, 5th Baronet (22 February 1778 - 15 December 1854) was son of Sir Mordaunt Martin, 4th Baronet and Everilda-Dorothea Smith.", "He inherited his baronetcy from his father, who was the fourth Martin Baronet, upon his death in 1815.", "He lived in Burnham Market in Norfolk"]], ["Sir Humphrey de Trafford, 4th Baronet", ["Sir Humphrey Edmund de Trafford, 4th Baronet( 30 November 1891 \u2013 6 October 1971) was a prominent English racehorse owner, and the grandfather of Brigadier Andrew Parker Bowles.", "He was the son of Sir Humphrey de Trafford, 3rd Baronet, and Violet Alice Maud Franklin."]]]
supporting_facts: [["Sir Mordaunt Martin, 4th Baronet", 0], ["Sir Roger Martin, 3rd Baronet", 0]]
evidences: [["Sir Mordaunt Martin, 4th Baronet", "father", "Sir Roger Martin, 3rd Baronet"], ["Sir Roger Martin, 3rd Baronet", "father", "Sir Roger Martin, 2nd Baronet"]]
answer: Sir Roger Martin, 2nd Baronet