_Rudolf IV ZÄHRINGEN ____+
                                                    | (.... - 1348) m 1325     
                         _Frederick III ZÄHRINGEN _|
                        | (1327 - 1353) m 1345      |
                        |                           |_Maria of OETTINGEN ______
                        |                             (.... - 1369) m 1325     
 _Rudolf VI ZÄHRINGEN _|
| (.... - 1371)         |
|                       |                            _Rudolf Hesso ZÄHRINGEN _+
|                       |                           | (1290 - 1335)            
|                       |_Margareta of ZÄHRINGEN __|
|                         (.... - 1367) m 1345      |
|                                                   |_Joanna of IVREA _________+
|                                                     (1293 - 1349)            
|
|--Rudolf VII ZÄHRINGEN 
|  (.... - 1391)
|                                                    _Henry II SPONHEIM _______+
|                                                   | (1292 - 1323)            
|                        _John III SPONHEIM ________|
|                       | (1315 - 1398)             |
|                       |                           |__________________________
|                       |                                                      
|_Matilde of SPONHEIM __|
                        |
                        |                            __________________________
                        |                           |                          
                        |___________________________|
                                                    |
                                                    |__________________________