_Albert IV HABSBURG ______+
                                                    | (1188 - 1239) m 1217     
                         _Rudolf I HABSBURG ________|
                        | (1218 - 1291)             |
                        |                           |_Hedwig of KYBURG ________+
                        |                              m 1217                  
 _Albert I HABSBURG ____|
| (1255 - 1308)         |
|                       |                            _Burkhard V HOHENZOLLERN _+
|                       |                           | (1201 - 1253)            
|                       |_Gertrude of HOHENZOLLERN _|
|                         (1225 - 1280)             |
|                                                   |_Matilda of TÜBINGEN ____
|                                                     (.... - 1253)            
|
|--Catherine of HABSBURG 
|  (1295 - 1322)
|                                                    __________________________
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|                       |                                                      
|_Elizabeth of GORIZIA _|
  (1262 - 1312)         |
                        |                            __________________________
                        |                           |                          
                        |___________________________|
                                                    |
                                                    |__________________________