Question: Who is the paternal grandfather of John Russell (Diplomat)?

Knowledge 1: John Russell (diplomat)
Sir John Wriothesley Russell, (22 August 1914 – 1984) was a British diplomat and ambassador.He was the only son of Thomas Wentworth Russell, better known as Russell Pasha, who was descended from John Russell, 6th Duke of Bedford.He was educated at Eton College and graduated from Trinity College, Cambridge, in 1935 with a Bachelor of Arts (B.A.), He was part of the British Embassy in Moscow in 1941 and in 1956, also with a M.A. degree, after which he was awarded a CMG in the 1958 Birthday Honours.He was British Ambassador in Ethiopia, 1962–1966, was awarded a KCVO in 1965, being British Ambassador to Brazil, 1966–1969, GCVO in 1968, and British Ambassador to Spain, 1969 – 1974.He was married to Aliki Diplarakou, the first Greek Miss Europe, and had a son, Alexander, and a daughter.He was interviewed briefly in the famous documentary series The World At War in 1973. [SEP] Knowledge 2: Thomas Wentworth Russell
Sir Thomas Wentworth Russell (1879–1954), better known as Russell Pasha, was a police officer in the Egyptian service.He was the fourth child and third son of the Rev. Henry Charles Russell, the grandson of the sixth duke of Bedford, and his wife, Leila Louisa Millicent Willoughby, the daughter of the eighth Baron Middleton.As the director of the Central Narcotics Intelligence Bureau (CNIB), Russell Pasha became an anti-drug campaigner when he realized that opium, heroin, cocaine and hashish were being smuggled into Egypt in great and increasing quantities.
Knowledge 1: John Russell (diplomat)
Sir John Wriothesley Russell, (22 August 1914 – 1984) was a British diplomat and ambassador.He was the only son of Thomas Wentworth Russell, better known as Russell Pasha, who was descended from John Russell, 6th Duke of Bedford.He was educated at Eton College and graduated from Trinity College, Cambridge, in 1935 with a Bachelor of Arts (B.A.), He was part of the British Embassy in Moscow in 1941 and in 1956, also with a M.A. degree, after which he was awarded a CMG in the 1958 Birthday Honours.He was British Ambassador in Ethiopia, 1962–1966, was awarded a KCVO in 1965, being British Ambassador to Brazil, 1966–1969, GCVO in 1968, and British Ambassador to Spain, 1969 – 1974.He was married to Aliki Diplarakou, the first Greek Miss Europe, and had a son, Alexander, and a daughter.He was interviewed briefly in the famous documentary series The World At War in 1973. [SEP] Knowledge 2: John Russell, 6th Duke of Bedford
John Russell, 6th Duke of Bedford( 6 July 1766 – 20 October 1839), known as Lord John Russell until 1802, was a British Whig politician who notably served as Lord Lieutenant of Ireland in the Ministry of All the Talents.He was the father of Prime Minister John Russell, 1st Earl Russell.
Knowledge 1: John Russell (diplomat)
Sir John Wriothesley Russell, (22 August 1914 – 1984) was a British diplomat and ambassador.He was the only son of Thomas Wentworth Russell, better known as Russell Pasha, who was descended from John Russell, 6th Duke of Bedford.He was educated at Eton College and graduated from Trinity College, Cambridge, in 1935 with a Bachelor of Arts (B.A.), He was part of the British Embassy in Moscow in 1941 and in 1956, also with a M.A. degree, after which he was awarded a CMG in the 1958 Birthday Honours.He was British Ambassador in Ethiopia, 1962–1966, was awarded a KCVO in 1965, being British Ambassador to Brazil, 1966–1969, GCVO in 1968, and British Ambassador to Spain, 1969 – 1974.He was married to Aliki Diplarakou, the first Greek Miss Europe, and had a son, Alexander, and a daughter.He was interviewed briefly in the famous documentary series The World At War in 1973. [SEP] Knowledge 2: John Russell (Cambuslang footballer)
John Russell was a Scottish footballer who played as a right half.

Answer: Henry Charles Russell