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.
Françoise Marie de Bourbon
Françoise Marie de Bourbon, "légitimée de France" (4 May 1677 – 1 February 1749) was the youngest illegitimate daughter of Louis XIV of France and his "maîtresse-en-titre", Françoise-Athénaïs, Marquise de Montespan.
At the age of 14, she was wed to her first cousin Philippe d'Orléans, future Regent of France during the minority of Louis XV.
Through four of the eight children she bore him in an unhappy marriage she became the ancestress of several of Europe's Roman Catholic monarchs of the 19th and 20th centuries, notably those of Belgium, Italy, Spain, and France.
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.
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.
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.
Louise Adélaïde d'Orléans
Louise Adélaïde d'Orléans (Marie Louise Adélaïde; 13 August 1698 – 10 February 1743) was the third daughter of Philippe d'Orléans, and Françoise Marie de Bourbon, a legitimised daughter of Louis XIV of France and his mistress, Madame de Montespan.
She was Abbess of Chelles.
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.
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.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.

Question: Who is the maternal grandmother of Louise Adélaïde D'Orléans?
Answer: Françoise-Athénaïs, marquise de Montespan