_Bernard III ASCANIA ________+
                                                                     | (1134 - 1211) m 1173        
                                      _Albert I ASCANIA _____________|
                                     | (1175 - 1260) m 1247          |
                                     |                               |_Judith of PIAST ____________+
                                     |                                 (1154 - 1201) m 1173        
 _John I ASCANIA ____________________|
| (1249 - 1285)                      |
|                                    |                                _Otto I WELF ________________+
|                                    |                               | (1204 - 1252) m 1228        
|                                    |_Helen of WELF ________________|
|                                      (1231 - 1273) m 1247          |
|                                                                    |_Matilda of ASCANIA _________+
|                                                                      (1210 - 1261) m 1228        
|
|--Eric I ASCANIA 
|  (1280 - 1360)
|                                                                     _Magnus Minnesköld BJÄLBO _+
|                                                                    | (1175 - 1208)               
|                                     _Birger Magnusson BJÄLBO _____|
|                                    | (1200 - 1266)                 |
|                                    |                               |_____________________________
|                                    |                                                             
|_Ingeborg Birgersdotter of BJÄLBO _|
  (1253 - 1302)                      |
                                     |                                _Eric X Knutsson ERIC _______+
                                     |                               |                             
                                     |_Ingeborg Eriksdotter of ERIC _|
                                       (1212 - 1254)                 |
                                                                     |_Richeza of ESTRIDSEN _______+
                                                                       (1190 - 1220)