_Rudolf III ZÄHRINGEN ________+
                                                         | (1343 - 1428)                 
                         _William ZÄHRINGEN ____________|
                        | (1406 - 1482)                  |
                        |                                |_Anne of FREIBURG-NEUCHÂTEL __
                        |                                                                
 _Rudolf IV ZÄHRINGEN _|
| (1426 - 1487)         |
|                       |                                 _William VII MONTFORT-BREGENZ _+
|                       |                                | (1375 - 1422)                 
|                       |_Elisabeth of MONTFORT-BREGENZ _|
|                         (1399 - 1458)                  |
|                                                        |_Kunigunde of TOGGENBURG ______
|                                                          (1370 - 1426)                 
|
|--Catherine of ZÄHRINGEN 
|  
|                                                         _______________________________
|                                                        |                               
|                        ________________________________|
|                       |                                |
|                       |                                |_______________________________
|                       |                                                                
|_Margaret of VIENNE ___|
                        |
                        |                                 _John III of CHALON-ARLAY _____+
                        |                                | (.... - 1418)                 
                        |_Alix of CHALON-ARLAY __________|
                          (.... - 1457)                  |
                                                         |_Mary of BAUX _________________
                                                           (.... - 1417)