_Henry X WELF __________________+
                                                       | (1108 - 1139)                  
                        _Henry III WELF _______________|
                       | (1129 - 1195)                 |
                       |                               |_Gertrude of SÜPPLINBURGER ____+
                       |                                 (1115 - 1143)                  
 _William WELF ________|
| (1184 - 1213)        |
|                      |                                _Henry II PLANTAGENET __________+
|                      |                               | (1132 - 1189) m 1152           
|                      |_Matilda of PLANTAGENET _______|
|                        (1155 - 1189)                 |
|                                                      |_Eleanor of POITIERS ___________+
|                                                        (1122 - 1204) m 1152           
|
|--Marianne of WELF 
|  (.... - 1252)
|                                                       _Canute Lavard ESTRIDSEN _______+
|                                                      | (1095 - 1130) m 1116           
|                       _Valdemar I Knudsen ESTRIDSEN _|
|                      | (1130 - 1182)                 |
|                      |                               |_Ingeborg Mstislavich of RURIK _+
|                      |                                  m 1116                        
|_Helena of ESTRIDSEN _|
  (1180 - 1233)        |
                       |                                _Volodar Glebovich POLOVTS _____
                       |                               |  m 1135                        
                       |_Sofia of POLOVTS _____________|
                         (1138 - 1198)                 |
                                                       |_Richeza of PIAST ______________+
                                                         (1116 - 1156) m 1135