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.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
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.
Peter Gladstone
Peter Gladstone (16 October 1928 – 25 July 2000) was a British naturalist and wildfowl expert and patent attorney.
He was the great grandson of the Liberal prime minister William Ewart Gladstone, and brother of Sir William Gladstone, 7th Baronet.
He grew up at Hawarden Castle in Wales, and attended Eton College, where his father, Charles Gladstone, was a housemaster.
He served in the Palestine Police in 1946, towards the end of the British Mandate of Palestine.
From 1949 to 1952 he studied biology at Christ Church, Oxford, and rowed for Oxford in the 1952 Boat Race.
He went on to teach biology at Shrewsbury School until 1971, when he joined Sir Peter Scott's Wildfowl and Wetlands Trust.
Gladstone developed the trust's wildfowl reserve at Martin Mere in Lancashire.
In the 1970s he took over the management of Fasque House, a family property in Aberdeenshire.
In 1998 he journeyed to Tibet in an unsuccessful search for the pink-headed duck.
He was a fellow of the Royal Geographical Society.
Gladstone died of a heart attack at the age of 71.
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.
Charles Gladstone
Sir Charles Andrew Gladstone, 6th Baronet (28 October 1888 – 28 April 1968) was a Master at Eton College and a British baronet.
Gladstone was the son of the Reverend Stephen Edward Gladstone and Annie Crosthwaite Wilson, and the grandson of the former Prime Minister, William Ewart Gladstone.
As a ten-year-old, he attended William Gladstone's state funeral.
He was educated at Eton College and Christ Church, Oxford.
He was a Master at Eton College from 1912 to 1946, he was commissioned a second lieutenant in the Territorial Force in 1912, attached to Eton's Officer Training Corps unit.
He fought in World War I, and was attached to the Royal Flying Corps from April 1915.
On being captured, he became a POW.
After the war, he continued to serve with the Eton OTC until 1924 when he resigned his commission and was granted the honorary rank of lieutenant.
Gladstone married Isla Margaret Crum, the daughter of Sir Walter Erskine Crum, on 3 January 1925.
They had six children, the oldest of whom was Sir Erskine William Gladstone of Fasque and Balfour, the 7th Baronet.
Another son, Peter, was a noted naturalist.
Gladstone became a Deputy Lieutenant of Hampshire in 1929, and was the Vice-Lieutenant between 1948 and 1968, and was a Justice of the Peace (JP) for Flintshire.
He held the office of High Sheriff of Flintshire in 1951.
In 1955 he was appointed a Commander of the Venerable Order of Saint John.
He succeeded to the title of 6th Baronet Gladstone, of Fasque and Balfour on 2 March 1967, following the death of his older brother, Sir Albert Charles Gladstone, the 5th Baronet.
Having proved his claim to the baronetcy he did not use the title.<br>
His son inherited the Baronetage under the appellation of Sir William Gladstone, 7th Baronet.
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.
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.
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.

Question: Who is Peter Gladstone's paternal grandmother?
Answer: Annie Crosthwaite Wilson