_Herman VII ZÄHRINGEN _+
                                                    | (1266 - 1291) m 1278   
                          _Frederick II ZÄHRINGEN _|
                         | (.... - 1333)            |
                         |                          |_Agnes of TREHENDINGEN _
                         |                            (.... - 1308) m 1278   
 _Herman IX ZÄHRINGEN __|
| (.... - 1353) m 1341   |
|                        |                           ________________________
|                        |                          |                        
|                        |_Margaret of VAIHINGEN ___|
|                          (.... - 1348)            |
|                                                   |________________________
|                                                                            
|
|--Frederick IV ZÄHRINGEN 
|  (.... - 1353)
|                                                    ________________________
|                                                   |                        
|                         __________________________|
|                        |                          |
|                        |                          |________________________
|                        |                                                   
|_Mathilda of VAIHINGEN _|
  (.... - 1381) m 1341   |
                         |                           ________________________
                         |                          |                        
                         |__________________________|
                                                    |
                                                    |________________________