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.
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.
Louisa Montagu Douglas Scott, Duchess of Buccleuch
Louisa Jane Montagu Douglas Scott, Duchess of Buccleuch and Queensberry( 26 August 1836 – 16 March 1912) was the daughter of James Hamilton, 1st Duke of Abercorn.
In 1884, she became the Duchess of Buccleuch and Duchess of Queensberry, the wife of William Henry Walter Montagu Douglas Scott, 6th Duke of Buccleuch& 8th Duke of Queensberry.
She was the paternal grandmother of Princess Alice, Duchess of Gloucester and of Marian Louisa, Lady Elmhirst, as well as the maternal great- grandmother of Prince William of Gloucester, Prince Richard, Duke of Gloucester and great- great- grandmother of Sarah, Duchess of York.
Margaret of Nevers
Margaret of Nevers( December 1393 – February 1442), also known as Margaret of Burgundy, was Dauphine of France and Duchess of Guyenne as the daughter- in- law of King Charles VI of France.
A pawn in the dynastic struggles between her family and in- laws during the Hundred Years' War, Margaret was twice envisaged to become Queen of France.
Margaret of France, Duchess of Brabant
Margaret of France (1254–1271) was a daughter of Louis IX of France and his wife Margaret of Provence.
She was a member of the House of Capet and was Duchess of Brabant by her marriage to John I, Duke of Brabant.
Louis IX of France
Louis IX (25 April 1214 – 25 August 1270), commonly known as Saint Louis, is the only King of France to be canonized in the Catholic Church.
Louis was crowned in Reims at the age of 12, following the death of his father Louis VIII; his mother, Blanche of Castile, ruled the kingdom as regent until he reached maturity.
During Louis' childhood, Blanche dealt with the opposition of rebellious vassals and obtained a definitive victory in the Albigensian Crusade which had started 20 years earlier.
As an adult, Louis IX faced recurring conflicts with some of the most-powerful nobles, such as Hugh X of Lusignan and Peter of Dreux.
Simultaneously, Henry III of England tried to restore his continental possessions, but was utterly defeated at the battle of Taillebourg.
His reign saw the annexation of several provinces, notably parts of Aquitaine, Maine and Provence.
Louis IX was a reformer and developed French royal justice, in which the king was the supreme judge to whom anyone could appeal to seek the amendment of a judgment.
He banned trials by ordeal, tried to prevent the private wars that were plaguing the country, and introduced the presumption of innocence in criminal procedure.
To enforce the application of this new legal system, Louis IX created provosts and bailiffs.
Following a vow he made after a serious illness and confirmed after a miraculous cure, Louis IX took an active part in the Seventh and Eighth Crusades.
He died from dysentery during the latter crusade, and was succeeded by his son Philip III.
Louis's actions were inspired by Christian zeal and Catholic devotion.
He decided to severely punish blasphemy (for which he set the punishment to mutilation of the tongue and lips), gambling, interest-bearing loans and prostitution.
He spent exorbitant sums on presumed relics of Christ, for which he built the Sainte-Chapelle.
He expanded the scope of the Inquisition and ordered the burning of Talmuds and other Jewish books.
He is the only canonized king of France, and there are consequently many places named after him.
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.
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.
Margaret of France, Duchess of Berry
Margaret of France, Duchess of Berry (French: "Marguerite de Valois")
(5 June 1523 – 15 September 1574) was the daughter of King Francis I of France and Claude, Duchess of Brittany.

Question: Who is Margaret Of France, Duchess Of Brabant's paternal grandmother?
Answer: Blanche of Castile