Kaya Alp
Kaya Alp was, according to Ottoman tradition, the son of Kızıl Buğa and the father of Suleyman Shah, who was, in turn, the grandfather of Ertuğrul, and the great grandfather of the Ottoman Empire founder, Osman I.
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.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
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.
Germaine of Foix
Germaine of Foix (1488 – 15 October 1536) was queen consort of Aragon as the second wife of Ferdinand II of Aragon, whom she married in 1506 after the death of his first wife, Isabella I of Castile in 1504.
Germaine's father was John of Foix, Viscount of Narbonne and son of Queen Eleanor of Navarre.
Her mother, Marie of Orléans, was the sister of King Louis XII of France.
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.
Pierre de Foix, le jeune
Peter of Foix the Younger( Fr.:" Pierre de Foix, le jeune")
( 7 February 1449 –10 August 1490)( called the Cardinal of Foix) was a French Roman Catholic bishop and cardinal.
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.
Johann of Brandenburg-Ansbach, Viceroy of Valencia
Johann of Brandenburg- Ansbach( 9 January 1493 in Plassenburg – 5 July 1525 in Valencia) was the second husband of Germaine de Foix and viceroy of Valencia from 1523 until his death in 1525.
He was a son of Frederick I, Margrave of Brandenburg- Ansbach and his wife Sophia of Poland.
He married on 17 June 1519 with Germaine de Foix( 1490 – 1538), second wife and widow of King Ferdinand II of Aragon.
In 1523 the couple was appointed Viceroys of Valencia by King Ferdinand's grandson Charles V, Holy Roman Emperor.
The marriage remained childless.
After his death Germaine of Foix remarried Ferdinand of Aragón, Duke of Calabria.
Johann of Brandenburg- Ansbach became in 1516 a knight in the Order of the Golden Fleece.
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.

Question: Who is Germaine Of Foix's paternal grandfather?
Answer: Gaston IV of Foix