Louis Joseph, Duke of Guise
Louis Joseph de Lorraine" Duke of Guise" and Duke of Angoulême,( 7 August 1650 – 30 July 1671) was the only son of Louis, Duke of Joyeuse and Marie Françoise de Valois, the only daughter of Louis- Emmanuel d' Angoulême, Count of Alès, Governor of Provence and son of Charles de Valois Duke of Angoulême, a bastard of Charles IX of 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.
Claude of France
Claude of France (13 October 1499 – 20 July 1524) was a queen consort of France by marriage to Francis I.
She was also ruling Duchess of Brittany from 1514.
She was a daughter of the French king Louis XII of France and Anne of Brittany.
Philip, Count of Vertus
Philip of Orléans, Count of Vertus( 21/24 July 1396 – 1 September 1420), was the second son of Louis I, Duke of Orléans, and Valentina Visconti, and a grandson of Charles V of France.
His older brother was the noted poet Charles, Duke of Orléans and his younger brother was John, Count of Angoulême.
Philip, Duke of Orléans
Philip of Orléans( 1 July 1336 at Vincennes – 1 September 1375 at Orléans) was a Duke of Orléans, Touraine, and Count of Valois, the fifth son of King Philip VI of France and his wife Joan the Lame.
His father named him Duke of Orléans, a newly created duchy, in 1344.
Catherine of France, Countess of Montpensier
Catherine of France (4 February 1378 – November 1388) was the youngest child of Charles V of France and Joanna of Bourbon, who were cousins.
She was a sibling of Charles VI of France and Louis of Valois, Duke of Orléans.
Charles II de Valois, Duke of Orléans
Charles II of Orléans (22 January 1522 – 9 September 1545) was the third son of Francis I and Claude of France.
Valentina Visconti, Duchess of Orléans
Valentina Visconti (1371 – 4 December 1408) was a Sovereign Countess of Vertus, and Duchess consort of Orléans as the wife of Louis de Valois, Duke of Orléans, the younger brother of King Charles VI of France.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Prince Henri of Orléans
Prince Henri of Orléans( 16 October 1867 – 9 August 1901) was the son of Prince Robert, Duke of Chartres, and Princess Françoise of Orléans.

Question: Who is Charles Ii De Valois, Duke Of Orléans's maternal grandmother?
Answer: Anne of Brittany