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.
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.
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.
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.
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.
Murad I
Murad I ((nicknamed Hüdavendigâr, from Persian: خداوندگار, "Khodāvandgārthe devotee of God" – but meaning "sovereign" in this context); 29 June 1326 – 15 June 1389) was the Ottoman Sultan from 1362 to 1389.
He was a son of Orhan and the Valide Nilüfer Hatun.
Murad I conquered Adrianople, renamed it to Edirne, and in 1363 made it the new capital of the Ottoman Sultanate.
Then he further expanded the Ottoman realm in Southeast Europe by bringing most of the Balkans under Ottoman rule, and forced the princes of northern Serbia and Bulgaria as well as the Byzantine emperor John V Palaiologos to pay him tribute.
Murad I administratively divided his sultanate into the two provinces of Anatolia (Asia Minor) and Rumelia (the Balkans).
Murad's death against the Serbs would cause the Ottomans to halt their expansion into the territory temporarily and focus their attention once more on the ailing Byzantine Empire.
Bayezid I
Bayezid I ((nicknamed Yıldırım (Ottoman Turkish: یلدیرم), "Lightning, Thunderbolt"); 1354 – 8 March 1403) was the Ottoman Sultan from 1389 to 1402.
He was the son of Murad I and Gülçiçek Hatun.
He built one of the largest armies in the known world at the time and unsuccessfully besieged Constantinople.
He adopted the title of Sultan-i Rûm, Rûm being an old Islamic name for the Roman Empire.
He decisively defeated the Crusaders at Nicopolis (in modern Bulgaria) in 1396, and was himself defeated and captured by Timur at the Battle of Ankara in 1402 and died in captivity in March 1403, triggering the Ottoman Interregnum.
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.

Question: Who is Bayezid I's paternal grandmother?