John of Foix, Viscount of Narbonne
John of Foix( 1450 – 1500, Étampes, France) was a younger son of Count Gaston IV of Foix and Queen Eleanor of Navarre.
His elder brother was Gaston, Prince of Viana.
Isabella, Countess of Foix
Isabella of Foix also known as" Isabella of Foix- Castelbon"( before 2 November 1361- 1428) was sovereign Countess of Foix and Viscountess of Béarn from 1399 until 1428.
She was Countess of Foix in her own right, but shared power with her husband and later with her son.
She succeeded as countess along with her husband upon the death of her childless brother Matthew.
Gaston II, Count of Foix
Gaston II of Foix-Béarn
( 1308 – September 1343), son of Gaston I of Foix- Béarn and Jeanne of Artois, was the 10th Count of Foix.
In 1315, after the death of his father Gaston I, he became Count of Foix, and Viscount of Béarn, Marsan, Gabardan, Nébouzan and Lautrec under the regency of his mother, Jeanne of Artois.
Count Gaston II imprisoned his mother Jeanne d'Artois in 1331 at the Château of Foix, being later moved in turn to Orthez, Lourdes and Carbonne.
Gaston II married his cousin Eleanore de Comminges, daughter of Bernard VII of Comminges and Laura de Montfort.
Eleanore de Comminges brought, as a dowry, her rights to the County of Bigorre.
They had one son: Gaston III Febus, who succeeded his father as Count of Foix.
Gaston II had several illegitimate children:
His actions in 1339 during the conquest of the castle of Tartas resulted in him receiving the title of Viscount of Lautrec.
He was at the Siege of Algeciras( 1342 – 44) in southern Spain, which was led by King Alfonso XI of Castile.
He died of the plague at Seville in 1343.
Gaston of Foix, Duke of Nemours
Gaston de Foix, duc de Nemours( 10 December 1489 – 11 April 1512), also known as" The Thunderbolt of Italy," was a French military commander noted mostly for his brilliant six- month campaign from 1511 to 1512 during the War of the League of Cambrai.
Born in Mazères, County of Foix, he was the second child but only son of John of Foix, Viscount of Narbonne and Marie d'Orléans.
His older sister was Germaine of Foix, Queen consort of Aragon as the second wife of Ferdinand II.
His paternal grandparents were Gaston IV of Foix- Grailly and Queen regnant Eleanor of Navarre.
His maternal grandparents were Charles, Duke of Orléans and Marie of Cleves.
His only maternal uncle was Louis XII of France.
Arnaud-Raymond II. de Béon
Raymond- Arnaud de Beon also known as Arnaud- Raymond II, was a sixteenth century Catholic prelate and Bishop of Oloron in France.
He assumed the bishopric from Cardinal Amanieu d' Albret who was acting as Administrator and he was Bishop of Oloron from 1507 until 1519 when he was replaced by Cardinal Jean Salviati who acted as Administrator.
He was the executor for his cousin Catherine de Foix, Queen of Navarre, great- grandmother'of Henry IV of France.
He was therefore a relative of Gaston IV, Count of Foix and Eleanor of Navarre( monarch of the Kingdom of Navarre), John II of Aragón and Blanche I of Navarre and of the succeeding bishop, Jacques de Foix.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
John I, Count of Foix
John I, Count of Foix also known as "Jean de Foix-Grailly" (1382 – 4 May 1436)
was Count of Foix from 1428 until his death in 1436.
He succeeded his mother Isabella, Countess of Foix.
His father was Archambaud de Grailly.
Catherine of Foix, Countess of Candale
Catherine de Foix( c. 1455 – died before 1494) was a French noblewoman.
She was a daughter of Gaston IV, Count of Foix and Eleanor of Navarre, and granddaughter of John II of Aragón and Blanche I of Navarre.
Catherine married her second cousin Gaston de Foix, Count of Candale.
They had four 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.
Gaston IV, Count of Foix
Gaston IV (27 November 1422 – 25 or 28 July 1472) was the sovereign Viscount of Béarn and the Count of Foix and Bigorre in France from 1436 to 1472.
He also held the viscounties of Marsan, Castelbon, Nébouzan, Villemeur and Lautrec and was, by virtue of the county of Foix, co-prince of Andorra.
From 1447 he was also Viscount of Narbonne.
Through his marriage to Eleonor, heiress of the Kingdom of Navarre, he also held the title of Prince of Navarre.
He was a son of John I, Count of Foix and Jeanne d'Albret.
His maternal grandparents were Charles d'Albret, Constable of France and co-commander of the French army, killed at the Battle of Agincourt, and his wife Marie de Sully.
Gaston married the Navarrese "Infanta", Eleonor, in 1436.
Her parents were John II of Aragon and Blanche I of Navarre.
At the time, Leonor appeared to have few prospects: her father was a younger son and brother of kings of Aragon, and Leonor had a brother, Charles of Viana, and an older sister, Blanca, standing between herself and the throne of Navarre.
However, family dissent and death eliminated both Charles and Blanca; Leonor's father usurped the Navarrese crown, to which he added in 1458 the throne of Aragon (his older brother having died without legitimate children) and, following the deaths of Charles and Blanca, promised the succession to Navarre to Leonor and her husband in return for their loyalty to him, which was given.
They had ten children:

Question: Who is the paternal grandmother of Gaston Iv, Count Of Foix?
Answer: Isabella, Countess of Foix