_Herman VII ZÄHRINGEN _____+
                                                       | (1266 - 1291) m 1278       
                             _Rudolf IV ZÄHRINGEN ____|
                            | (.... - 1348) m 1325     |
                            |                          |_Agnes of TREHENDINGEN _____
                            |                            (.... - 1308) m 1278       
 _Frederick III ZÄHRINGEN _|
| (1327 - 1353) m 1345      |
|                           |                           ____________________________
|                           |                          |                            
|                           |_Maria of OETTINGEN ______|
|                             (.... - 1369) m 1325     |
|                                                      |____________________________
|                                                                                   
|
|--Rudolf VI ZÄHRINGEN 
|  (.... - 1371)
|                                                       _Hesso ZÄHRINGEN __________+
|                                                      | (1268 - 1296)              
|                            _Rudolf Hesso ZÄHRINGEN _|
|                           | (1290 - 1335)            |
|                           |                          |_Adelaide of RIENECK _______
|                           |                                                       
|_Margareta of ZÄHRINGEN __|
  (.... - 1367) m 1345      |
                            |                           _Reginald IVREA ____________+
                            |                          | (.... - 1321)              
                            |_Joanna of IVREA _________|
                              (1293 - 1349)            |
                                                       |_Guillemette of MONTFAUCON _
                                                         (1260 - 1317)