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.
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.
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.
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.
Bhumanyu
Bhúmanyu means Emperor.
Bhúmanyu / Bhoomanyu / Bhuvmanyu was the successor of first emperor of India, Bharata.
Emperor Bharata, one of the greatest kings of ancient India, and founder of the eponymous dynasty, had nine sons from three wives.
None of Bharata's sons were worthy enough to become the next Emperor.
Bharata was not pleased with his sons and so their mothers became angry and slew them all.
Bharata then performed a great sacrifice for obtaining an heir to the throne Bhúmanyu was born out of that great sacrifice performed by the Sage Bharadwaja at the behest of Bharata.
Bhúmanyu was adopted by Bharata as his son.
Bhumanyu was made the next emperor.
Bhumanyu's lineage is the story of the Mahabharat.
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.
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.
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.
Bharata (Mahabharata)
In Hindu scriptures, Bharata  is an ancestor of the Pandavas and the Kauravas in the Sanskrit epic Mahabharata.
Though the Bhāratas are a prominent community in the Rigveda, the story of Bharata is first told in the Adi Parva of the Mahabharata, wherein he is the son of Dushyanta and Shakuntala.
The story of his parents and his birth is also related in Kalidasa's famous play Abhijñānashākuntala.

Question: Who is Bhumanyu's paternal grandmother?
Answer: Shakuntala