_Jacob I ZÄHRINGEN _+
                                                      | (1406 - 1453) m 1422
                              _Charles I ZÄHRINGEN __|
                             | (1427 - 1474) m 1447   |
                             |                        |_Catherine of METZ __+
                             |                          (1407 - 1438) m 1422
 _Christoph I ZÄHRINGEN ____|
| (1453 - 1527)              |
|                            |                         _Ernest HABSBURG ____+
|                            |                        | (1377 - 1424) m 1411
|                            |_Catherine of HABSBURG _|
|                              (1424 - 1493) m 1447   |
|                                                     |_Cymburgis of PIAST _+
|                                                       (1394 - 1429) m 1411
|
|--Beatrix of ZÄHRINGEN 
|  (1491 - 1535)
|                                                      _____________________
|                                                     |                     
|                             ________________________|
|                            |                        |
|                            |                        |_____________________
|                            |                                              
|_Ottilie of KATZENELNBOGEN _|
  (1451 - 1517)              |
                             |                         _____________________
                             |                        |                     
                             |________________________|
                                                      |
                                                      |_____________________