_Henry I ASCANIA ______________+
                                                              | (1170 - 1252)                 
                            _Siegfried I ASCANIA _____________|
                           | (1230 - 1298) m 1259             |
                           |                                  |_Irmgard of LUDOVING __________+
                           |                                    (1197 - 1244)                 
 _Albert I ASCANIA ________|
| (.... - 1316)            |
|                          |                                   _Birger Magnusson BJÄLBO _____+
|                          |                                  | (1200 - 1266)                 
|                          |_Catherine Birgersdotter BJÄLBO _|
|                             m 1259                          |
|                                                             |_Ingeborg Eriksdotter of ERIC _+
|                                                               (1212 - 1254)                 
|
|--Siegfried II ASCANIA 
|  (.... - 1307)
|                                                              _______________________________
|                                                             |                               
|                           __________________________________|
|                          |                                  |
|                          |                                  |_______________________________
|                          |                                                                  
|_Liutgard of SCHAUENBURG _|
  (1251 - 1288)            |
                           |                                   _______________________________
                           |                                  |                               
                           |__________________________________|
                                                              |
                                                              |_______________________________