Dudley Ryder, 6th Earl of Harrowby
Dudley Ryder, 6th Earl of Harrowby (11 October 1892 – 7 May 1987), known as Viscount Sandon from 1900 to 1956, was a British peer and Conservative Member of Parliament.
Harrowby was the son of John Ryder, 5th Earl of Harrowby, and the Hon.
Mabel Danvers Smith.
William Henry Smith, another former Member of Parliament, was his maternal grandfather.
He was educated at Eton College and Christ Church, Oxford, graduating as B.A. He was made an honorary D.Litt.
by the university in 1964.
Harrowby was a Territorial officer in the Royal Field Artillery and served through World War I, during which he was wounded, rising to Major.
He was re-employed in World War II as a Major with the Royal Artillery.
From 1946 to 1950 he was Colonel Commandant of Staffordshire Army Cadet Force.
His first working contact with politics was as Assistant Private Secretary to Secretary of State for the Colonies, Viscount Milner from 1919 to 1920.
He was elected to the House of Commons for Shrewsbury in 1922, a seat he held until 1923 and again from 1924 to 1929, and was Parliamentary Private Secretary to the Secretary of State for Air Sir Samuel Hoare between 1922 and 1923.
Harrowby was also a member of the Commission on Historical Manuscripts from 1935 to 1966 and was the author of "Geography of Everyday Things" and (jointly)
"England at Worship".
In 1956 he succeeded his father in the earldom and entered the House of Lords.
He served in local government as an Alderman of London County Council from 1932 to 1937, then as an elected County Councillor from 1937 to 1940.
He also became a D.L. for Staffordshire in 1925 and J.P. for the same county in 1929.
Lord Harrowby married Lady Helena Blanche Coventry, daughter of George William Coventry, Viscount Deerhurst, in 1922.
She died in 1974.
Harrowby survived her by thirteen years and died in May 1987, aged 94.
He was succeeded in his titles by his eldest son Dudley.
John Ryder, 5th Earl of Harrowby
John Herbert Dudley Ryder, 5th Earl of Harrowby (22 August 1864 – 30 March 1956), briefly known as Viscount Sandon from March to December 1900, was a British peer and Conservative Member of Parliament.
Harrowby was the son of Henry Dudley Ryder, 4th Earl of Harrowby, and Susan Juliana Maria Hamilton Dent.
Dudley Ryder, 2nd Earl of Harrowby
Dudley Ryder, 2nd Earl of Harrowby KG, PC, FRS( 19 May 179819 November 1882), styled Viscount Sandon between 1809 and 1847, was a British politician.
He held office under Lord Palmerston as Chancellor of the Duchy of Lancaster in 1855 and as Lord Privy Seal between 1855 and 1858.
Margaret de Stafford
Margaret Stafford( born c. 1364; died 9 June 1396) was the daughter of Hugh de Stafford, 2nd Earl of Stafford, and Philippa de Beauchamp.
She was the first wife of Ralph Neville, 1st Earl of Westmorland, and the grandmother of the 2nd Earl.
Granville Ryder (1799–1879)
The Honourable Granville Dudley Ryder JP (26 November 1799 – 24 November 1879), was a British Tory politician.
Ryder was the second son of Dudley Ryder, 1st Earl of Harrowby, by his wife Lady Susan, daughter of Granville Leveson-Gower, 1st Marquess of Stafford.
He initially served in the Royal Navy and achieved the rank of Lieutenant.
He later sat as Member of Parliament for Tiverton from 1830 to 1832 and for Hertfordshire from 1841 to 1847.
He also served as a Justice of the Peace for Hertfordshire.
Ryder married Lady Georgiana Augusta, daughter of Henry Somerset, 6th Duke of Beaufort, in 1825.
Their eldest son Dudley Henry Ryder was an ancestor of the soldier and politician Robert Ryder.
Their second son Granville Ryder was a politician.
Lady Georgiana Ryder died in March 1865.
Ryder survived her by fourteen years and died in November 1879, two days before his eightieth birthday.
Dudley Ryder, 1st Earl of Harrowby
Dudley Ryder, 1st Earl of Harrowby, PC, FSA( 22 December 176226 December 1847) was a prominent British politician of the Pittite faction and the Tory party.
Hubba bint Hulail
Hubba bint Hulail was the grandmother of Hashim ibn' Abd Manaf, thus the great- great- great- grandmother of the Islamic" Nabī"( Prophet) Muhammad ibn Abdullah.
Tjuyu
Tjuyu( sometimes transliterated as Thuya or Thuyu) was an Egyptian noblewoman and the mother of queen Tiye, and the wife of Yuya.
She is the grandmother of Akhenaten, and great grandmother of Tutankhamun.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Henry Ryder, 4th Earl of Harrowby
Henry Dudley Ryder, 4th Earl of Harrowby (3 May 1836 – 11 December 1900), was a British peer, succeeding his brother as Earl of Harrowby on 26 March 1900, and dying nine months later.
Harrowby was the son of Dudley Ryder, 2nd Earl of Harrowby, and his wife, Frances Stuart, fourth daughter of the first Marquess of Bute.
He was educated at Harrow School and Christ Church, Oxford, and became a senior partner at Coutts & Co.
Lord Harrowby married Susan Juliana Maria Hamilton Dent, only daughter of John Villiers Dent and his wife Susan Orde, on 17 May 1859.
They became the parents of eight children.
He died in December 1900, at sea, on his yacht "Miranda", off Algiers, and was buried at Sandon.
He was succeeded in his titles by his son John Ryder.

Question: Who is the paternal grandmother of Dudley Ryder, 6Th Earl Of Harrowby?
Answer: Susan Juliana Maria Hamilton Dent