_Otto I ASCANIA _______________+
                                                                | (1128 - 1184)                 
                                        _Albert II ASCANIA _____|
                                       | (1177 - 1219) m 1205   |
                                       |                        |_Ada of HOLLAND _______________+
                                       |                          (1163 - 1205)                 
 _John I ASCANIA ______________________|
| (1213 - 1266)                        |
|                                      |                         _Conrad II WETTIN _____________+
|                                      |                        | (1159 - 1210)                 
|                                      |_Matilda of WETTIN _____|
|                                        (1185 - 1225) m 1205   |
|                                                               |_Elizabeth of PIAST ___________+
|                                                                 (1152 - 1209)                 
|
|--Helen of ASCANIA 
|  (1241 - 1304)
|                                                                _Valdemar I Knudsen ESTRIDSEN _+
|                                                               | (1130 - 1182)                 
|                                       _Valdemar II ESTRIDSEN _|
|                                      | (1170 - 1241)          |
|                                      |                        |_Sofia of POLOVTS _____________+
|                                      |                          (1138 - 1198)                 
|_Sophia of Valdemarsdatter ESTRIDSEN _|
  (1217 - 1247)                        |
                                       |                         _Sancho I BURGUNDY ____________+
                                       |                        | (1154 - 1211)                 
                                       |_Berengaria BURGUNDY ___|
                                         (1198 - 1221)          |
                                                                |_Dulce of BARCELONA ___________+
                                                                  (1160 - 1198)