Gülbahar Hatun (wife of Mehmed II)
Gülbahar Hatun( 1432 – 1492) was the consort of Sultan Mehmed II, and mother of Sultan Bayezid II of the Ottoman Empire and the grandmother of Selim I.
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.
Hüma Hatun
Hüma Hatun (1410 ‒ September 1449) was the fourth wife of Ottoman Sultan Murad II and mother of Mehmed II and the grandmother of Bayezid II.
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.
Anne Denman
Anne Denman( 1587–1661) was born in Olde Hall, Retford, Nottinghamshire.
Through a fortunate second marriage with Thomas Aylesbury, she became the grandmother of Lady Anne Hyde, Duchess of York and great- grandmother of Queen Mary II and Queen Anne.
Thomas Harley
The Honourable Thomas Harley (24 August 1730 – 1 December 1804) was a British politician who sat in the House of Commons for 41 years from 1761 to 1802.
Harley was the fourth son of Edward Harley, 3rd Earl of Oxford and Earl Mortimer and educated at Westminster School.
He became an alderman of London, Sheriff of London in 1764 and Lord Mayor of London in 1767.
He served as Member of Parliament for London from 1761 to 1774 and then for his native Herefordshire for most of the rest of his life.
In 1775 he bought the Berrington estate near Eye, Herefordshire from the Cornewall family and built Berrington Hall in 1778–1781 in place of an older house.
It is now classified as a Grade I listed building.
He was elected Mayor of Shrewsbury for 1784–85 and appointed Lord Lieutenant of Radnorshire for April 1791 to August 1804.
He died in December, 1804.
He had married in 1752, Anne, the daughter of Edward Bangham, deputy Auditor of the Imprest.
They had 2 sons, who both predeceased him, and 5 daughters.
He gave Berrington to his daughter Anne when she married George Rodney (1753–1802), the son of Admiral George Brydges Rodney, 1st Baron Rodney.
Another daughter Martha married George Drummond of Stanmore.
Harley Street in London is named after Thomas.
Kaoru Hatoyama
After the elections of 2009, she became more widely known as the grandmother of Prime Minister Yukio Hatoyama and his politician brother Kunio Hatoyama.
Mona Hopton Bell
Mona Hopton Bell( 1867- 1940) was a British artist, best known for her portraits of civic figures.
She was the grandmother of the painter Jean H. Bell.
Edward Harley, 3rd Earl of Oxford and Earl Mortimer
Edward Harley, 3rd Earl of Oxford and Earl Mortimer (c. 1699 – 11 April 1755, in Bath) was a British peer and Member of Parliament.
Harley was the son of Edward Harley and his wife Sarah Foley and was educated at Westminster School and Christ Church, Oxford.
He succeeded his father in 1735 to the Eywood estate at Titley, Herefordshire and his cousin Edward Harley, 2nd Earl of Oxford and Earl Mortimer in 1741 to the earldom and the family seat at Brampton Bryan.
One of his first acts on succeeding his brother was to auction off his predecessor's art and coin collection through the auctioneer Cock, at an art sale held under the Piazza, Covent Garden, on 8 March 1741/2 and the five following days, with six more days being required by the coins.
Nearly all the leading men of the day, including Horace Walpole, attended or were represented at this sale, and the prices varied from five shillings for an anonymous bishop's "head" to 165 guineas for van Dyck's group of "Sir Kenelm Digby, lady, and son".
He was returned to Parliament as the member for Herefordshire in 1727, sitting until 1741.

Question: Who is the paternal grandmother of Thomas Harley?
Answer: Sarah Foley