_Henry IX WELF _____________+
                                                        | (1075 - 1126)              
                           _Henry X WELF _______________|
                          | (1108 - 1139)               |
                          |                             |_Wulfhilde of BILLUNG ______+
                          |                               (1072 - 1126)              
 _Henry III WELF _________|
| (1129 - 1195)           |
|                         |                              _Lothair II SÜPPLINBURGER _+
|                         |                             | (1075 - 1137)              
|                         |_Gertrude of SÜPPLINBURGER _|
|                           (1115 - 1143)               |
|                                                       |_Richenza of NORDHEIM ______+
|                                                         (1087 - 1141)              
|
|--Matilda of WELF 
|  (1172 - 1210)
|                                                        _Geoffrey V PLANTAGENET ____+
|                                                       | (1113 - 1151)              
|                          _Henry II PLANTAGENET _______|
|                         | (1132 - 1189) m 1152        |
|                         |                             |_Matilda of NORMANDY _______+
|                         |                               (1101 - 1167)              
|_Matilda of PLANTAGENET _|
  (1155 - 1189)           |
                          |                              _William X POITIERS ________+
                          |                             | (1099 - 1137)              
                          |_Eleanor of POITIERS ________|
                            (1122 - 1204) m 1152        |
                                                        |_Aénor of CHÂTELLERAULT __+
                                                          (1103 - 1129)