_Frederick III ZÄHRINGEN _+
                                                | (1327 - 1353) m 1345      
                         _Rudolf VI ZÄHRINGEN _|
                        | (.... - 1371)         |
                        |                       |_Margareta of ZÄHRINGEN __+
                        |                         (.... - 1367) m 1345      
 _Bernard I ZÄHRINGEN _|
| (1364 - 1431) m 1398  |
|                       |                        _John III SPONHEIM ________+
|                       |                       | (1315 - 1398)             
|                       |_Matilde of SPONHEIM __|
|                                               |
|                                               |___________________________
|                                                                           
|
|--Margaret of ZÄHRINGEN 
|  (1403 - 1442)
|                                                ___________________________
|                                               |                           
|                        _______________________|
|                       |                       |
|                       |                       |___________________________
|                       |                                                   
|_Anna of OETTINGEN ____|
   m 1398               |
                        |                        ___________________________
                        |                       |                           
                        |_______________________|
                                                |
                                                |___________________________