Gaston I de Foix-Grailly

Gaston I de Foix-Grailly († post 1455) was from 1412 to 1451 Captal de Buch, Count of Bénauges, and Viscount Castillon. He was a Knight of the Order of the Garter from 1438. Gaston was the second son and heir of Archambaud de Grailly and his wife, Isabella, Countess of Foix.[1]

On his father's side Gaston stemmed from the House of Grailly, originally based on Lake Geneva. In the service of the English King the family held for several generations the Captal de Buch, an English governorship in Gascony. In this position the House of Grailly took a leading role in the Hundred Years' War against France. Through the marriage of Gaston's father, however, to the heiress of the Count of Foix, Matthew, and in response to military pressure, the family became subject to the King of France by the Treaty of Tarbes.

In accordance with this treaty, Gaston and his elder brother, John, were sent to the royal court at Paris as hostages, to guarantee the loyalty of their parents and to receive a proper education. However, after his father's death in 1412, Gaston inherited possessions including the Capitalate de Buch, for which he owed homage to the King of England, while his older brother, inheriting his mother's lands, remained a subject of the King of France.[2] Therefore, the House of Foix-Grailly was split between the two sides of the Hundred Years' War, and Gaston was expected to fight for England, as his ancestors had done.

In late summer 1415, Gaston was a member of the army of Henry V of England, which landed on the coast of Normandy and conquered most of the region in the following years. Gaston took part in the victorious Battle of Agincourt on 25 October of the same year, while his brother, John I, Count of Foix, fought for the other side. Early in the morning of 31 July 1419, Gaston captured Pontoise, whose defender, Jean de Villiers de L'Isle-Adam, surrendered the town without a fight, having been taken by surprise by a quick night march.[3] This opened the way into the Île-de-France for the English army. Following the Treaty of Troyes in 1420, which recognized King Henry as rightful heir to the French throne, Gaston received the County of Longueville as a fief,[4] but soon lost it after the death of Henry in 1422. When the balance of the war changed in favour of France with the rise of Joan of Arc, Gaston's lands in Gascony also fell into the hands of the French. Nonetheless, Gaston refused to recognize the Treaty of Pons on 12 June 1451, which governed the relationship between the French crown and the Gascoigne nobility, and denied his homage to Charles VII of France. Instead he sold the Capitalate de Buch to his nephew, Gaston IV, Count of Foix, and to Jean de Dunois, and took himself into exile in Meilles in Aragon, where he died.

Marriage and Issue

From 1410 Gaston I de Foix-Grailly was married to Marguerite, a daughter of Arnaud-Amanieu d'Albret and his wife Marguerite de Bourbon. Three children were born from this marriage:

∞ I) Jacques de Pons, Viscount Turenne
∞ II) 1462 Don Pedro de Peralta y Ezpeleta, Conde de Santiseban y Lerín (possibly a great uncle of Charles II of Navarre) (House of France-Évreux)
  • Agnes, married to Pey Poton de Lamensan

Also known are four illegitimate children of Gaston:

Footnotes
  1. Sumption 2015, p. 200.
  2. Collins 2000, p. 141.
  3. Sumption 2015, pp. 645–646.
  4. Sumption 2015, p. 609.
  5. Lodge 1907, p. 94.

References
  • Collins, Hugh E.L. (2000). The Order of the Garter 1348–1461: Chivalry and Politics in Late Medieval England. Oxford: Clarendon Press (published 13 July 2000). ISBN 978-0-19-820817-4.
  • Lodge, E.C. (1907). "The Barony of Castelnau, in the Médoc, during the Middle Ages" (PDF). English Historical Review. 22 (85): 93–101. doi:10.1093/ehr/XXII.LXXXV.93. JSTOR 549759.
  • Sumption, Jonathan (2015). The Hundred Years War IV: Cursed Kings. London: Faber & Faber. ISBN 978-0-571-27454-3.
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