Roger Bernard IV de Foix, Vescomte de Castellbó

House of Foix-Béarn

Main article: House of Foix-Béarn

1302-1315 : 9th Gaston I of Foix-Béarn (son of, also viscount of Béarn)

1315-1343 : 10th Gaston II of Foix-Béarn (son of, also viscount of Béarn)

1343-1391 : 11th Gaston III of Foix-Béarn - Phoebus of Foix-Béarn (son of, also viscount of Béarn)

1391-1398 : 12th Mathieu of Foix-Castelbon (son of Roger Bernard II, viscount of Castelbon, who was son of Roger Bernard I, viscount of Castelbon, who was younger brother of Gaston II of Foix-Béarn, also viscount of Béarn and viscount of Castelbon)

1398-1412 : 13th Isabelle of Foix-Castelbon (sister of, also viscountess of Béarn and viscountess of Castelbon, married Archambaud of Grailly)

• Reference: Geneanet Genealogy - SmartCopy: Jul 14 2017, 11:14:16 UTC