Ferdinand, Count of Flanders

jure uxoris Count of Flanders
Reign 1212–1233
Predecessor Joan
Successor Joan
Co-ruler Joan
Born 23 February 1187
Coimbra, Kingdom of Portugal
Died 27 July 1233(1233-07-27) (aged 46)
Noyon, France
Burial Marquette near Lille, France
Spouse Joan, Countess of Flanders
House House of Burgundy
Father Sancho I of Portugal
Mother Dulce of Aragon
Religion Roman Catholicism

Ferdinand (24 March 1188 27 July 1233; Portuguese: Fernando, French and Dutch: Ferrand) reigned as jure uxoris Count of Flanders and Hainaut from his marriage to Countess Joan, celebrated in Paris in 1212, until his death. He was born in Coimbra, and he was an Infante of Portugal as the fourth son of King Sancho I of Portugal and Dulce of Aragon.

While on their way to Flanders, Ferdinand and Joan were captured by Joan's first cousin Louis, eldest son of Philip II of France and Joan's aunt Isabella. Louis' aim was to acquire his dead mother's dowry, a large piece of Flemish territory including Artois, which Joan's father had taken back by force after Isabella's death.

Released after this concession, Joan and Ferdinand soon joined the old allies of her father, King John of England and Emperor Otto IV, in an alliance against France. They were decisively defeated at Bouvines in July 1214, where Ferdinand was taken prisoner.

Count Ferdinand imprisoned after the Battle of Bouvines

Ferdinand was to remain in French hands for the next 12 years, while Joan ruled alone. He was released in 1226, by the French regent, Blanche of Castile, after the accession of her son Louis IX of France.[1]

Ferdinand died in Noyon on 27 July 1233.[2] His and Joan's only child, a daughter named Maria, died childless, and their counties eventually passed to Joan's younger sister, Margaret II.



  1. Weiler et al 2007, p. 53.
  2. Eugene L. Cox, The Eagles of Savoy:The House of Savoy in Thirteenth century Europe, (Princeton University Press, 1974), 56.


Ferdinand, Count of Flanders
Born: 1188 Died: 27 July 1233
Regnal titles
Preceded by
as sole ruler
Count of Flanders
Succeeded by
as sole ruler
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