House of Foix

Coat of Arms
House of Foix
Counts of Foix
Viscounts of Castelbon
House of Foix-Béarn
Counts of Foix and Bigorre
Viscounts of Béarn, Castelbon and Cerdanya

Cadet Branches
House of Foix-Rabat
Lords of Saverdun and Fornex
Barons of Mardogne
Viscounts of Couserans
and Massac
Barons, Viscounts
and Counts of Rabat
Marquises of Foix
Issued from Loup, illegitimate son of Raymond-Roger, Count of Foix
House of Foix-Castelbon
Lords of Urgell
Viscounts of Castelbon
Issued from Roger-Bernard, 2nd son of Gaston I, Count of Foix
House of de la Cerda-Medinaceli
Lords of El Puerto de Santa María
Marquises of Cogolludo
Counts and Dukes of Medinaceli
Issued from Bernal, illegitimate son of Gaston III, Count of Foix
Assumed name and arms from De la Cerda family as their successors
House of Foix-Grailly
Captals de Buch
Viscounts of Bearn
Counts of Foix and Bigorre
Kings of Navarre
Matrilineal branch issued from Isabella, Countess of Foix

Personal Arms
Roger IV de Foix
Count of Foix
Viscount of Castelbon
Lord of Andorra
Seal of 1241
Roger Bernard III de Foix
Count of Foix and Bigorre
Viscount of Béarn, Castelbon
and Cerdanya
Arms variant in Tournoi de Compiègne Chronicle
Roger Bernard III de Foix
Count of Foix and Bigorre
Viscount of Béarn, Castelbon
and Cerdanya
Arms variant in Herald's Roll
Isabella of Foix
Countess of Foix and Bigorre
Viscountess of Béarn and Castelbon