Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
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.
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.
Robert Sidney, 4th Earl of Leicester
Robert Sidney, 4th Earl of Leicester (1649 – 11 November 1702) was the son of Philip Sidney, 3rd Earl of Leicester, and the former Lady Catherine Cecil.
Philip Sidney, 5th Earl of Leicester
Philip Sidney, 5th Earl of Leicester( 8 July 1676 – 24 July 1705) was a British peer and Member of Parliament for Kent, styled Viscount Lisle from 1698 to 1702.
He inherited the earldom from Robert Sidney, 4th Earl of Leicester and was succeeded by his brother John Sidney, 6th Earl of Leicester.
There is a memorial to him at St John the Baptist, Penshurst.
Thomas Coke, 8th Earl of Leicester
Thomas Edward Coke, 8th Earl of Leicester( born 6 July 1965), is the son of Edward Coke, 7th Earl of Leicester, and Valeria Phyllis Potter.
He is the current Earl of Leicester.
From 1994 to 2015, when he succeeded into the Earldom, he was styled Viscount Coke.
Edward Coke, 7th Earl of Leicester
Edward Douglas Coke, 7th Earl of Leicester, CBE, DL( 6 May 1936 – 25 April 2015), styled Viscount Coke between 1976 and 1994, was an English nobleman.
The Earl of Leicester was one of Norfolk's leading figures and played a key role in preserving and modernising the Holkham Estate over the last 40 years.
Anne Hankford
Anne Hankford( c. 1431 – 13 November 1485) was the first wife of Thomas Butler, 7th Earl of Ormond( c. 1426- 3 August 1515).
She was the great- grandmother of Anne Boleyn
Jocelyn Sidney, 7th Earl of Leicester
Jocelyn Sidney, 7th Earl of Leicester (1682 – 7 July 1743) was a British peer, known as Hon.
Jocelyn Sidney until 1737.
He was the son of Robert Sidney, 4th Earl of Leicester and Lady Elizabeth Egerton.
He was educated at University College, Oxford University.
In 1734, he was appointed Chief Porter of the Tower of London by his older brother John Sidney, 6th Earl of Leicester, then Constable of the Tower.
He succeeded his brother in that year, but died without legitimate issue in 1743, when the titles of Earl of Leicester and Viscount Lisle became extinct.
Jocelyn's illegitimate daughter Lady Anne Sidney married Henry Streatfeild of Chiddingstone, Kent on 25 September 1752.
On Sir Jocelyn's death, Henry could potentially have inherited the Penshurst Estate, but after much legal wrangling Henry and Anne only received the income from the Sidneys' Welsh properties - but these were still fairly significant.

Question: Who is the paternal grandmother of Jocelyn Sidney, 7Th Earl Of Leicester?
Answer: Lady Catherine Cecil