Gaston IV, Count of Foix, Viscount of Bearn (27 November 1422 - 25 July/28 July 1472) was a French nobleman, who founded a brief-ruling dynastic house of the Kingdom of Navarre. November 27 is the 331st day (332nd in leap years) of the year in the Gregorian calendar. ... Events January 10 - Battle of Nemecky Brod during the Hussite Wars. ... July 25 is the 206th day (207th in leap years) of the year in the Gregorian calendar, with 159 days remaining. ... July 28 is the 209th day (210th in leap years) of the year in the Gregorian Calendar, with 156 days remaining. ... February 20 - Orkney and Shetland are returned by Norway to Scotland, due to a defaulted dowry payment Possible discovery of Bacalao (possibly Newfoundland, North America) by João Vaz Corte-Real. ... Though the details are largely legendary, the Kingdom of Navarre evolved from the county of Pamplona, its traditional capital, when the Vasconic leader Enneco Aresta (Iñigo Arista or Aiza in Spanish) was chosen King in Pamplona (traditionally in 824) and led a local revolt against the Franks. ...

He was a son of John I of Foix-Grailly and Joan of Albret. His maternal grandparents were Charles d'Albret, Constable of France and co-commander of the French army at the Battle of Agincourt where he was killed, and his wife Marie de Sully. Charles dAlbert (c1337 -1415)was constable of France and joint commander of the French army at Agincourt where he was killed He was born into a old Gascon family around 1337, he was the son of Arnaud Lord of Albert and fought under Bertrand du Guesclin as a young... The Constable of France (French connétable de France, from Latin comes stabulari for count of the stables), as the First Officer of the Crown, was one of the original five Great Officers of the Crown of France (along with seneschal, chamberlain, butler, and chancellor) and Commander in Chief of... Combatants Kingdom of England Kingdom of France Commanders Henry V of England Charles dAlbret Strength About 6,000 (but see Modern re-assessment). 4/5 longbowmen, 1/5 dismounted men-at-arms. ...

Gaston married the Navarrese Infanta, Leonor, in 1436. Her parents were John II and Blanche I of Navarre. At the time, Leonor appeared to have few prospects: her father was a younger son and brother of the Kings of Aragon, and Leonor had a brother, Charles of Viana, and an older sister, Blanca, standing between herself and the inheritance of Navarre. However, family dissent and death eliminated both Charles and Blanca; Leonor's father usurped the Navarrese throne, to which he added in 1455 the throne of Aragon (his older brother having died without children), and, following the deaths of Charles and Blanca, promised the inheritance of Navarre to Leonor and her husband in return for their loyalty to him, which was given. Eleanor de Foix (1425-Tudela, 1479), regent (1455-1479) and queen (1479) of Navarre. ... John II the Great (June 29, 1397 – January 20, 1479) was the King of Aragon (1458–1479) and a King of Navarre (1425–1479). ... This article needs to be cleaned up to conform to a higher standard of quality. ... Capital Pamplona (Basque: Iruña) Official language(s) Spanish; Basque co-official in the north of community. ... Charles, Prince of Viana, ( 1421 - 1461), sometimes called Charles IV, king of Navarre, was the son of John, afterwards king of Aragon, by his marriage with Blanche, daughter and heiress of Charles, king of Navarre. ... Blanca of Navarre (1420-1464) was the daughter of John II of Aragon and Blanche I of Navarre. ...

They had eight children:

• Gaston de Foix (1443-1470), (sometimes called “Gaston V of Foix”), Viscount of Castelbon, prince of Viana (1462-1470), lieutenant general of Navarre (1469).
  • By Magdalena of Valois, Gaston V fathered two monarchs of Navarre, François Phébus (1468-1483) and Catherine of Navarre (1468-1517)
• Jean de Foix (1446-1500), Viscount of Narbonne (1468-1500), count d' Étampes (1478-1500). He claimed the throne of Navarre upon the death of his nephew François Phébus. He married in 1476 Marie of Orleans (1457-1493)
• Margaret of Foix (1449-1486), married on June 27, 1471 at Clisson with Francis II, Duke of Brittany. They were parents of Anne of Brittany, twice queen of France as consort to both Charles VIII of France and Louis XII of France.
• Pierre de Foix (February 7, 1449 to August 10, 1490), (sometimes called “Pierre II of Foix”), called Pierre the Young, cardinal (1576), viceroy of Navarre (1479-1484)
• Marie de Foix (c.1452-1467)
• Jeanne de Foix (c.1454-c.1476), married in August 1469 in Lectoure, with Jean V of Armagnac (1420-1473).
• Catherine de Foix (c.1460-before 1494), married in 1469 with Gaston de Foix, Count of Candale (c.1440-1500), (sometimes called “Gaston II of Foix”).
• Jacques de Foix (1470-1500), Count of Montfort

Gaston died in 1472, outlived by his wife and father-in-law. Francis Phoebus (in French François Fébus and in Spanish Francisco Febo) (c. ... Catherine (in Spanish, Catalina de Foix) (1468-1518), was queen of Navarre (1483-1513), duchess of Gandía, Montblanc, and Peñafiel, countess of Foix, Bigorre, and Ribagorza, and viscountess of Béarn. ... Francis II (in French François II) (June 23, 1433 – September 9, 1488), was duke of Brittany, from 1458 to his death. ... Portrait of Anne of Brittany by Jean Bourdichon Anne of Brittany (January 25, 1477 – January 9, 1514), also known as Anna of Brittany (French: Anne de Bretagne; Breton: Anna Vreizh), was a French aristocrat, who was to become queen to two successive French kings, and ruling Duchess of Brittany. ... Charles VIII the Affable (French: Charles VIII lAffable) (June 30, 1470 – April 7, 1498) was King of France from 1483 to his death. ... Louis XII the Father of the People (French: Louis XII le Père du Peuple) (June 27, 1462 – January 1, 1515) was King of France 1498 – January 1, 1515. ... Catherine de Foix (c. ...