_William VI of BÉTHUNE _+
                                                 | (.... - 1340)           
                            _Jean I of BÉTHUNE _|
                           | (.... - 1378)       |
                           |                     |_________________________
                           |                                               
 _Robert VIII of BÉTHUNE _|
| (.... - 1408)            |
|                          |                      _Enguerrand VI of COUCY _
|                          |                     | (1313 - 1346)           
|                          |_Jeanne of COUCY ____|
|                                                |
|                                                |_Catherine of HABSBURG __+
|                                                  (1319 - 1349)           
|
|--Jeanne of BÉTHUNE 
|  (1397 - 1450)
|                                                 _________________________
|                                                |                         
|                           _____________________|
|                          |                     |
|                          |                     |_________________________
|                          |                                               
|_Isabelle of GHISTELLES __|
                           |
                           |                      _________________________
                           |                     |                         
                           |_____________________|
                                                 |
                                                 |_________________________