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.
Blanche of Brittany
Blanche of Brittany (1271–1327) was a daughter of John II, Duke of Brittany, and his wife Beatrice of England.
She is also known as Blanche de Dreux.
Through her mother she was the granddaughter of King Henry III of England and Eleanor of Provence.
Margaret of Artois
Margaret of Artois (1285–1311) was the eldest child of Philip of Artois and his wife, Blanche of Brittany.
She was a member of the House of Artois.
She was married to Louis d'Évreux.
By her marriage, Margaret was Countess consort of Évreux.
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.
Thierry Larchier d'Hirson
Thierry Larchier d' Hirson or d' Hireçon, or de Hérisson,( 1270 in Bourbonnais – 23 August 1328) was a French cleric under Robert II, Count of Artois.
Hirson was employed by Philip IV of France on several occasions.
He became a canon of Arras in 1299; chancellor of Mahaut, Countess of Artois in 1303; provost of Aire- sur- la- Lys in 1309; and was appointed Bishop of Arras in April 1328.
He died on 23 August 1328.
Hirson was involved with Jeanne de Divion, who, in revenge for what she did not inherit upon the bishop's death, procured false documents for Robert III of Artois so that he could recover the County of Artois, which had been bestowed upon his great aunt Mahaut, Countess of Artois, in a legal dispute.
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.
Diana Guardato
Diana Guardato was a member of the aristocratic Patrician Guardato family, and had three children with King Ferdinand I: Diana Guardato is the 16th- Great Grandmother of His Royal Highness Albert II of Belgium, 15th- Great Grandmother of His Majesty Juan Carlos
I of Spain, 17th- Great Grandmother of Philippe of Belgium, 14th- Great Grandmother of His Majesty Manuel II of Portugal, 16th- Great Grandmother of Grand Duke Henri, as well as many others.
Louis, Count of Évreux
Louis of Évreux( 3 May 1276 – 19 May 1319, Paris) was a prince, the only son of King Philip III of France and his second wife Maria of Brabant, and thus a half- brother of King Philip IV of France.
Louis had a quiet and reflective personality and was politically opposed to the scheming of his half- brother Charles of Valois.
He was, however, close with his nephew Philip V of France.
He married Margaret of Artois, daughter of Philip of Artois and sister of Robert III of Artois, and had five children:
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.

Question: Who is Margaret Of Artois's maternal grandmother?
Answer: Beatrice of England