_Herman V ZÄHRINGEN _+
                                                   | (.... - 1242)        
                          _Rudolf I ZÄHRINGEN ____|
                         | (1230 - 1288) m 1257    |
                         |                         |_Irmengard of WELF ___+
                         |                           (1200 - 1259)        
 _Herman VII ZÄHRINGEN _|
| (1266 - 1291) m 1278   |
|                        |                          ______________________
|                        |                         |                      
|                        |_Kunigunde of EBERSTEIN _|
|                          (1230 - 1284) m 1257    |
|                                                  |______________________
|                                                                         
|
|--Frederick II ZÄHRINGEN 
|  (.... - 1333)
|                                                   ______________________
|                                                  |                      
|                         _________________________|
|                        |                         |
|                        |                         |______________________
|                        |                                                
|_Agnes of TREHENDINGEN _|
  (.... - 1308) m 1278   |
                         |                          ______________________
                         |                         |                      
                         |_________________________|
                                                   |
                                                   |______________________