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.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Aleksey Belevsky-Zhukovsky
Count Alexei Alexeevich Belevsky-Zhukovsky (26 November 1871, Salzburg – c. 1931 Caucasus) was the son of Grand Duke Alexei Alexandrovich of Russia and Alexandra Vasilievna, Baroness Seggiano.
He was also, being the son of Grand Duke Alexei, a grandson of Alexander II of Russia.
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.
Grand Duke Alexei Alexandrovich of Russia
Grand Duke Alexei Alexandrovich of Russia,(Russian: Алексей Александрович; 14 January 1850 (2 January O.S.) in St. Petersburg – 14 November 1908 in Paris) was the fifth child and the fourth son of Alexander II of Russia and his first wife Maria Alexandrovna
(Marie of Hesse).
Chosen for a naval career, Alexei Alexandrovich started his military training at the age of 7.
By the age of 20 he had been appointed lieutenant of the Imperial Russian Navy and had visited all Russia's European military ports.
In 1871, he was sent as a goodwill ambassador to the United States and Japan.
In 1883 he was appointed general-admiral.
He had a significant contribution in the equipment of the Russian navy with new ships and in modernizing the naval ports.
However, after the Russian defeat in the Battle of Tsushima in 1905, he was relieved of his command.
He died in Paris in 1908.
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.
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 Aleksey Belevsky-Zhukovsky's paternal grandmother?
Answer: Maria Alexandrovna