_John FOIX __________+
                                                          | (1410 - 1485) m 1446
                                     _Gaston II FOIX _____|
                                    | (1448 - 1500) m 1494|
                                    |                     |_Margaret KERDESTON _+
                                    |                        m 1446             
 _Alain of FOIX ____________________|
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|                                   |_Isabelle of ALBRET _|
|                                      m 1494             |
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|--Jeanne Françoise of FOIX 
|  (.... - 1542)
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|_Françoise of Montpezat DES PREZ _|
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