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.
Marie of Blois, Duchess of Anjou
Marie of Blois( 1345- 1404) was a daughter of Joanna, Duchess of Brittany and Charles, Duke of Brittany.
Through marriage to Louis I, Duke of Anjou, she became Duchess of Anjou, Countess of Maine, Duchess of Touraine, titular Queen of Naples and Jerusalem and Countess of Provence.
Charles II of Naples
Charles II, also known as Charles the Lame (1254 – 5 May 1309), was King of Naples, Count of Provence and Forcalquier (1285–1309), Prince of Achaea (1285–1289), and Count of Anjou and Maine (1285–1290); he also styled himself King of Albania and claimed the Kingdom of Jerusalem from 1285.
He was the son of Charles
I of Anjouone of the most powerful European monarchs in the second half of the 13th centuryand Beatrice of Provence.
His father granted Charles the Principality of Salerno in the Kingdom of Sicily (or "Regno") in 1272 and made him regent in Provence and Forcalquier in 1279.
After the uprising known as the Sicilian Vespers against Charles' father, the island of Sicily became an independent kingdom under the rule of Peter III of Aragon in 1282.
A year later, his father made Charles regent in the mainland territories of the "Regno" (or the Kingdom of Naples).
Charles held a general assembly where unpopular taxes were abolished and the liberties of the noblemen and clerics were confirmed.
He could not prevent the Aragonese from occupying Calabria and the islands in the Gulf of Naples.
The Sicilian admiral, Roger of Lauria, captured him in a naval battle near Naples in 1284.
As he was still in prison when his father died on 7 January 1285, his realms were ruled by regents.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
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.
Margaret, Countess of Anjou
Margaret, Countess of Anjou (1272 – 31 December 1299) was Countess of Anjou and Maine in her own right and Countess of Valois, Alençon, Chartres and Perche by marriage.
Margaret's father was King Charles II of Naples, whilst her husband was Charles of Valois, and her older brother was Saint Louis of Toulouse; her nephew was Charles I of Hungary.
Margaret of Valois, Countess of Blois
Margaret of Valois( 1295–1342) was a French noblewoman.
She was a daughter of Charles, Count of Valois, and his first wife, Margaret, Countess of Anjou.
She was also a sister of King Philip VI of France.
In 1310, she married Guy I, Count of Blois.
They had three children together:
Ermengarde-Gerberga of Anjou
Ermengarde- Gerberga of Anjou, also called Ermengarde of Anjou, was the Countess of Rennes, Regent of Brittany( 992–994) and also Countess of Angoulême.
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.

Question: Who is Margaret, Countess Of Anjou's paternal grandmother?
Answer: Beatrice of Provence