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.
Herbert William Fisher
Herbert William Fisher (30 July 1826 – 17 January 1903) was a British historian, best known for his book "Considerations on the Origin of the American War" (1865).
Fisher was born at Poulshot, Wiltshire, the son of Rev. William Fisher (1799–1874), rector of Poulshot from 1823 to his death, and Canon of Salisbury Cathedral from 1834 and his wife Elizabeth Cookson (c. 1803–1851).
He was educated at Christ Church, Oxford and became a tutor in 1851 becoming tutor to the future King Edward VII in 1859.
He was called to the bar at Inner Temple in 1855 and served as private secretary to Henry Pelham-Clinton, 5th Duke of Newcastle-under-Lyne.
In 1862 he became private secretary to the Prince of Wales, his former pupil, and became Keeper of the Privy Seal in 1865, before being appointed to the position of Vice-Warden of the Stannaries, Cornwall in 1870.
Fisher married Mary Louisa Jackson (30 December 1841 – 24 August 1916) on 5 Aug 1862 in Hendon, Middlesex.
She was born in Calcutta, the second daughter of John Jackson, physician in the Bengal Medical Service and her younger sister, Julia, was the mother of Virginia Woolf.
Her older sister, Adeline, married Henry Halford Vaughan.
Fisher and his wife had seven sons and several daughters.
The sons included historian H. A. L. Fisher, and Admiral Sir William Wordsworth Fisher.
Among the daughters was Florence, Lady Darwin.
Another daughter, Adeline Maria, was the first wife of the composer Ralph Vaughan Williams.
Fisher's funeral took place in Brockenhurst, Hampshire on 23 January 1903.
The King and Queen were represented by Major-General Sir Stanley Clarke.
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.
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.
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.
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.
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.
Edwin Fisher (banker)
Edwin Fisher (16 December 1883 – 27 January 1947) was an English banker, chairman of Barclay's Bank from 1936 until his death, and President of the British Bankers' Association
Fisher was the youngest son of the historian Herbert William Fisher and his wife Mary Louisa Jackson
(he had 10 older siblings).
He was educated at Clifton College.
He served as a commissioned officer during the First World War with the 3rd
The King's Own Hussars, and from 1915 the Life Guards.
After the armistice, he worked his way up the ranks in Barclay's Bank, succeeding W. Favill Tuke as Chairman in 1936.
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.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.

Question: Who is Edwin Fisher (Banker)'s paternal grandmother?
Answer: Elizabeth Cookson