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.
Marie de Namur
Marie of Namur, also known as Marie de Namur or Maria van Dampierre.
Her titles were" Gräfin von Vianden", from her first marriage and" Dame de Pierrepont", from her second marriage to, Theobald of Bar.
Born in 1322 to John I of Namur and his wife Marie of Artois.
She had three sisters, including Blanche of Namur, Queen consort of Sweden and Norway, and seven brothers.
In 1335/ 36, she married her first husband, Henry II, Graf of Vianden, son of Philip II, Graf of Vianden and his first wife Lucia von der Neuerburg.
Henry was murdered at Famagusta in September 1337.
In c. 1337, she gave birth to Maria of Vianden her first daughter from her marriage to Henry II, Graf of Vianden.
Her second marriage in 1340( dispensation 9 September 1342) was to her father's second cousin, Theobald of Bar, Seigneur de Pierrepont, son of Erard of Bar, Seigneur de Pierrepont et d'Ancerville( himself son of Theobald II of Bar), and his wife Isabelle of Lorraine( daughter of Theobald II, Duke of Lorraine).
This marriage produced two daughters, Yolande de Bar( b. c 1343 – d. c 1410) and Elisabeth de Bar( b. c 1345 – d. before 11 May 1411).
Marie died somewhere before 29 October 1353/ 57.
Erard II of Chacenay
Erard II( died 16 June 1236) was the Sire de Chacenay( Chassenay) from 1190/ 1.
He was the eldest son of Erard I of Chacenay and Mathilde de Donzy.
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.
Erard of Bar, Seigneur de Pierrepont et d'Ancerville
Erard of Bar, (French: Érard de Bar) was a monk by 1292 and then seigneur de Pierrepont
et d'Ancerville by 1302.
Erard was one of eight sons born to Theobald II, Count of Bar and his wife, Jeanne de Toucy.
He married Isabella of Lorraine
(d. 12 December 1353), daughter of Theobald II, Duke of Lorraine, and Isabelle de Rumigny; they had had six children.
Erard died in 1335 at Pierrepont, France.
Theobald II, Count of Bar
Theobald II (1221– October 1291) was a count of Bar.
He was the son of Henry II of Bar and Philippa of Dreux.
He became count of Bar when his father was killed during the Barons' Crusade in 1239, but news of Henry's death did not reached him until 1240.
As Theobald was still a minor, his mother ruled as regent until 17 March 1242.
Theobald's own children included his successor Henry III and the bishop Reginald of Bar.
Elisabeth de Bar
Elizabeth of Bar also known as Elisabeth( Isabel) de Bar- Pierrepont, was born circa 1345 at Hagestein, Zeeland, Netherlands.
She was the youngest daughter of Theobald de Bar, Seigneur de Pierrepont and his wife Marie de Namur.
When her father, Theobald, died between 2 August 1353 and 6 July 1354.
And because he had no legitimate male heir, she became the heiress of Bar- Pierrepont.
She married Otto, Lord of Arkel, son of John IV, Lord of Arkel and Irmengard of Cleves, somewhere before 18 October 1360.
They had one son, John V, Lord of Arkel, born on September 11, 1362 in Gorinchem.
Elisabeth died before 11 May 1411 at Pierrepont, France.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Theobald of Bar, Seigneur de Pierrepont
Theobald of Bar( French: Thibauld/ Thiebaut de Bar), Seigneur of Pierrepont.
He was one of six children born to Erard of Bar, Seigneur de Pierrepont et d'Ancerville( himself son of Theobald II of Bar), and Isabelle of Lorraine( daughter of Theobald II, Duke of Lorraine).
In 1340, he married Marie de Namur( daughter of John I, of Dampierre and Marie of Artois), after her first husband Henry II, Graf of Vianden was murdered at Famagusta three years before.
His wife, Marie gave birth to two daughters, Yolande and Elisabeth.
When Theobald, died( between 2 August 1353 and 6 July 1354) he had no legitimate male heir, thus his daughter Elisabeth became the heiress of Bar- Pierrepont.
Margaret of Bar
Margaret of Bar( 1220–1275) was a daughter of Henry II of Bar and his wife Philippa of Dreux.
She was Countess of Luxembourg by her marriage to Henry V of Luxembourg.
She is also known as" Marguerite of Bar".

Question: Who is Erard Of Bar, Seigneur De Pierrepont Et D'Ancerville's paternal grandmother?