_Bernard III ASCANIA ___+
                                                | (1134 - 1211) m 1173   
                       _Henry I ASCANIA ________|
                      | (1170 - 1252)           |
                      |                         |_Judith of PIAST _______+
                      |                           (1154 - 1201) m 1173   
 _Henry II ASCANIA ___|
| (1215 - 1266)       |
|                     |                          _Hermann I LUDOVINGIAN _+
|                     |                         | (1165 - 1217)          
|                     |_Irmgard of LUDOVINGIAN _|
|                       (1197 - 1244)           |
|                                               |_Sophia of WITTELSBACH _+
|                                                 (1170 - 1238)          
|
|--Otto I ASCANIA 
|  (.... - 1304)
|                                                _William WELF __________+
|                                               | (1184 - 1213)          
|                      _Otto I WELF ____________|
|                     | (1204 - 1252) m 1228    |
|                     |                         |_Helena of ESTRIDSEN ___+
|                     |                           (1180 - 1233)          
|_Matilda of WELF ____|
  (.... - 1295)       |
                      |                          _Albert II ASCANIA _____+
                      |                         | (1177 - 1219) m 1205   
                      |_Matilda of ASCANIA _____|
                        (1210 - 1261) m 1228    |
                                                |_Matilda of WETTIN _____+
                                                  (1185 - 1225) m 1205