_William V of BÉTHUNE _+
                                                |                        
                       _William VI of BÉTHUNE _|
                      | (.... - 1340)           |
                      |                         |________________________
                      |                                                  
 _Jean I of BÉTHUNE _|
| (.... - 1378)       |
|                     |                          ________________________
|                     |                         |                        
|                     |_________________________|
|                                               |
|                                               |________________________
|                                                                        
|
|--Robert VIII of BÉTHUNE 
|  (.... - 1408)
|                                                ________________________
|                                               |                        
|                      _Enguerrand VI of COUCY _|
|                     | (1313 - 1346)           |
|                     |                         |________________________
|                     |                                                  
|_Jeanne of COUCY ____|
                      |
                      |                          _Leopold I HABSBURG ____+
                      |                         | (1290 - 1325) m 1315   
                      |_Catherine of HABSBURG __|
                        (1319 - 1349)           |
                                                |_Catherine of SAVOY ____+
                                                  (1284 - 1336) m 1315