_Eric IX Jedvardsson ERIC _________
                                                        | (1120 - 1160)                     
                         _Canute I Eriksson ERIC _______|
                        | (1150 - 1195)                 |
                        |                               |_Chirstina Björnsdatter IRONSIDE _+
                        |                                                                   
 _Eric X Knutsson ERIC _|
|                       |
|                       |                                ___________________________________
|                       |                               |                                   
|                       |_______________________________|
|                                                       |
|                                                       |___________________________________
|                                                                                           
|
|--Ingeborg Eriksdotter of ERIC 
|  (1212 - 1254)
|                                                        _Canute Lavard ESTRIDSEN __________+
|                                                       | (1095 - 1130) m 1116              
|                        _Valdemar I Knudsen ESTRIDSEN _|
|                       | (1130 - 1182)                 |
|                       |                               |_Ingeborg Mstislavich of RURIK ____+
|                       |                                  m 1116                           
|_Richeza of ESTRIDSEN _|
  (1190 - 1220)         |
                        |                                _Volodar Glebovich POLOVTS ________
                        |                               |  m 1135                           
                        |_Sofia of POLOVTS _____________|
                          (1138 - 1198)                 |
                                                        |_Richeza of PIAST _________________+
                                                          (1116 - 1156) m 1135