Jeanne of Bar, Countess of Marle and Soissons
Jeanne de Bar, suo jure Countess of Marle and Soissons, Dame d' Oisy, Viscountess of Meaux, and Countess of Saint- Pol, of Brienne, de Ligny, and Conversano( 1415 – 14 May 1462) was a noble French heiress and Sovereign Countess.
She was the only child of Robert of Bar, Count of Marle and Soissons, Sire d' Oisy, who was killed at the Battle of Agincourt when she was a baby, leaving her the sole heiress to his titles and estates.
In 1430, at the age of fifteen, Jeanne was one of the three women placed in charge of Joan of Arc when the latter was a prisoner in the castle of John II of Luxembourg, Count of Ligny, Jeanne's stepfather.
She was the first wife of Louis of Luxembourg, Count of Saint- Pol, of Brienne, de Ligny, and Conversano, Constable of France.
From their marriage descended Mary, Queen of Scots, King Henry IV of France and the subsequent Bourbon kings of France.
John II of Luxembourg, Count of Ligny
John II of Luxembourg, Count of Ligny (1392 – 5 January 1441) was a French nobleman and soldier, a younger son of John of Luxembourg, Lord of Beauvoir, and Marguerite of Enghien.
His older brother Peter received his mother's fiefs, including the County of Brienne, while John received Beaurevoir.
He married Jeanne de Béthune, Viscountess of Meaux, widow of Robert of Bar, on 23 November 1418, and became step-father to Jeanne de Bar, Countess of Marle and Soissons.
He and Jeanne de Béthune had no children.
Charles I, Count of Ligny
Charles I, Count of Ligny( 1488–1530) was a son of Anthony I, Count of Ligny and his second wife, Françoise van Croÿe- Chimay.
In 1519, he succeeded his father as Count of Brienne and Count of Ligny.
He was imprisoned after buying a copy of William Byrd's" Gradualia" on the basis of Catholic tensions[ needs editing: William Byrd was born in 1539 or 1540].
In 1510, he married Charlotte of Estouteville; they had the following children:
Margaret, Countess of Brienne
Marguerite d' Enghien, suo jure Countess of Brienne and of Conversano," suo jure" Heiress of Enghien, and Lady of Beauvois( born 1365), was a wealthy noblewoman from the County of Hainaut in her own right, having inherited the counties of Brienne and of Conversano, and the Lordship of Enghien from her father Louis of Enghien on 17 March 1394.
She was the wife of John of Luxembourg, Sire of Beauvois and the mother of Peter of Luxembourg, Count of Saint- Pol, Count of Brienne and of Conversano who inherited her fiefs, and John II of Luxembourg, Count of Ligny.
Anthony I, Count of Ligny
Anthony I, Count of Ligny( 1450 – 1519) was the youngest son of Louis de Luxembourg, Count of Saint- Pol and his wife, Jeanne de Bar, Countess of Marle and Soissons.
In 1482, he inherited the County of Brienne from his brother Peter II, Count of Saint- Pol.
After the death of Charles of Bourbon in 1510, Anthony inherited the County of Ligny, which thereby fell back to the House of Luxemburg.
Waleran I, Lord of Ligny
Waleran I of Luxembourg( died 5 June 1288 in the Battle of Worringen) was since 1281 Lord of Ligny and La Roche.
He was the second son of Henry V, Count of Luxembourg and Margaret of Bar.
He married Jeanne, Dame de Beaurevoir( died before December 1300), and had:
He was killed together with his brother Henry VI, Count of Luxembourg in the Battle of Worringen against John I, Duke of Brabant.
His eldest son, Henry II of Ligny, succeeded him .<br>
Waleran of Luxembourg is one of the protagonists in" Le Tournoi de Chauvency" by trouvère Jacques Bretel.
Marie of Luxembourg, Countess of Vendôme
Marie of Luxembourg( died 1 April 1547) was a French princess, the elder daughter and principal heiress of Peter II of Luxembourg, Count of Saint- Pol and Soissons, and Margaret of Savoy, a daughter of Louis I, Duke of Savoy.
She belonged to the French, cadet branch of a dynasty which had reigned as Dukes of Luxembourg, and whose senior line provided several Holy Roman Emperors, before becoming extinct in 1437.
Her paternal grandparents were Louis of Luxembourg, Count of Saint- Pol and Brienne and Jeanne de Bar, Countess of Marle and Soissons.
Her maternal grandparents were Louis I, Duke of Savoy and Princess Anne of Cyprus.
John of Luxembourg, Lord of Beauvoir
John of Luxembourg ("Jean de Luxembourg")
(– bef.
2 July 1397, Italy), was Lord of Beauvoir (or Beaurevoir) and Richebourg, and also (as "John II")
Count of Brienne and Conversano .
He was a son of Guy I of Luxembourg, Count of Ligny and Mahaut de Châtillon (1335–1378), Countess of Saint-Pol.
John married around 1387 with Margaret, Countess of Brienne, daughter of Louis of Enghien, heiress of the counties of Brienne and of Conversano, and the Lordship of Enghien.
They had five children:
Jeanne de Béthune, Viscountess of Meaux
Jeanne de Béthune, Viscountess of Meaux, Countess of Ligny( c.1397- late 1450), was a French noblewoman, the suo jure Viscountess of Meaux, having inherited the title upon her father's death in 1408.
Her father was Robert VIII de Béthune, Viscount of Meaux.
Jeanne married twice; firstly to Robert of Bar, and secondly John II of Luxembourg, Count of Ligny who held Joan of Arc prisoner following her capture by the Burgundians in May 1430.
Jeanne was one of the three women who cared for Joan during her imprisonment.
Mary of Avesnes
Marie of Hainaut( 1280–1354) was the daughter of John II, Count of Holland and Philippa of Luxembourg, her brother was William I, Count of Hainaut.

Question: Who is the paternal grandmother of John Ii Of Luxembourg, Count Of Ligny?
Answer: Mahaut de Châtillon