_Bernard III ASCANIA ___+
                                                                 | (1134 - 1211) m 1173   
                                    _Henry I ASCANIA ____________|
                                   | (1170 - 1252)               |
                                   |                             |_Judith of PIAST _______+
                                   |                               (1154 - 1201) m 1173   
 _Bernhard I ASCANIA ______________|
| (1218 - 1287) m 1257             |
|                                  |                              _Hermann I LUDOVING ____+
|                                  |                             | (1165 - 1217)          
|                                  |_Irmgard of LUDOVING ________|
|                                    (1197 - 1244)               |
|                                                                |_Sophia of WITTELSBACH _+
|                                                                  (1170 - 1238)          
|
|--John I ASCANIA 
|  (.... - 1291)
|                                                                 _Valdemar II ESTRIDSEN _+
|                                                                | (1170 - 1241)          
|                                   _Abel Valdemarsen ESTRIDSEN _|
|                                  | (1218 - 1252)               |
|                                  |                             |_Berengaria BURGUNDY ___+
|                                  |                               (1198 - 1221)          
|_Sophie Abelsdatter of ESTRIDSEN _|
  (1240 - 1284) m 1257             |
                                   |                              ________________________
                                   |                             |                        
                                   |_Matilda of SCHAUENBURG _____|
                                     (1220 - 1288)               |
                                                                 |________________________