_Conrad I HOHENZOLLERN _+
                                                           | (1186 - 1261)          
                              _Frederick III HOHENZOLLERN _|
                             | (1220 - 1297)               |
                             |                             |________________________
                             |                                                      
 _Frederick IV HOHENZOLLERN _|
| (1287 - 1332)              |
|                            |                              _Albert I ASCANIA ______+
|                            |                             | (1175 - 1260) m 1247   
|                            |_Helen of ASCANIA ___________|
|                              (1247 - 1309)               |
|                                                          |_Helen of WELF _________+
|                                                            (1231 - 1273) m 1247   
|
|--John II HOHENZOLLERN 
|  (1309 - 1357)
|                                                           ________________________
|                                                          |                        
|                             _____________________________|
|                            |                             |
|                            |                             |________________________
|                            |                                                      
|_Margaret of GöRZ _________|
                             |
                             |                              ________________________
                             |                             |                        
                             |_____________________________|
                                                           |
                                                           |________________________