_Valdemar I Knudsen ESTRIDSEN _+
                                                       | (1130 - 1182)                 
                               _Valdemar II ESTRIDSEN _|
                              | (1170 - 1241)          |
                              |                        |_Sofia of POLOVTS _____________+
                              |                          (1138 - 1198)                 
 _Abel Valdemarsen ESTRIDSEN _|
| (1218 - 1252)               |
|                             |                         _Sancho I BURGUNDY ____________+
|                             |                        | (1154 - 1211)                 
|                             |_Berengaria BURGUNDY ___|
|                               (1198 - 1221)          |
|                                                      |_Dulce of BARCELONA ___________+
|                                                        (1160 - 1198)                 
|
|--Eric I Abelsen ESTRIDSEN 
|  (1241 - 1272)
|                                                       _______________________________
|                                                      |                               
|                              ________________________|
|                             |                        |
|                             |                        |_______________________________
|                             |                                                        
|_Matilda of SCHAUENBURG _____|
  (1220 - 1288)               |
                              |                         _______________________________
                              |                        |                               
                              |________________________|
                                                       |
                                                       |_______________________________