_Roger-Bernard of FOIX _+
                                                     | (1130 - 1188) m 1151   
                             _Raymond-Roger of FOIX _|
                            | (.... - 1223)          |
                            |                        |_Cecilia of TRENCAVEL __
                            |                           m 1151                
 _Roger-Bernard II of FOIX _|
| (1195 - 1241) m 1208      |
|                           |                         _Ramon I of MONTCADA ___+
|                           |                        | (1150 - 1190)          
|                           |_Philippa of MONTCADA __|
|                                                    |
|                                                    |_Romona of TORNAMIRA ___
|                                                                             
|
|--Roger IV of FOIX 
|  (.... - 1264)
|                                                     ________________________
|                                                    |                        
|                            ________________________|
|                           |                        |
|                           |                        |________________________
|                           |                                                 
|_Ermessenda of CASTELLBO __|
  (.... - 1237) m 1208      |
                            |                         ________________________
                            |                        |                        
                            |________________________|
                                                     |
                                                     |________________________