_Bernhard II ASCANIA _+
                                              | (1260 - 1323)        
                       _Bernhard III ASCANIA _|
                      | (1300 - 1348) m 1343  |
                      |                       |_Helen of VITSLAV ____+
                      |                         (1270 - 1315)        
 _Otto III ASCANIA ___|
| (.... - 1403)       |
|                     |                        _Magnus I WELF _______+
|                     |                       | (1304 - 1369)        
|                     |_Matilda of WELF ______|
|                       (.... - 1354) m 1343  |
|                                             |_Sophia of ASCANIA ___
|                                               (1300 - 1356)        
|
|--Otto IV ASCANIA 
|  (.... - 1415)
|                                              ______________________
|                                             |                      
|                      _______________________|
|                     |                       |
|                     |                       |______________________
|                     |                                              
|_____________________|
                      |
                      |                        ______________________
                      |                       |                      
                      |_______________________|
                                              |
                                              |______________________