_Baldwin II FLANDERS __________+
                                                           | (1056 - 1098)                 
                        _Baldwin III FLANDERS _____________|
                       | (1088 - 1120)                     |
                       |                                   |_Ida of REGINAR _______________+
                       |                                     (.... - 1139)                 
 _Baldwin IV FLANDERS _|
| (1108 - 1171)        |
|                      |                                    _______________________________
|                      |                                   |                               
|                      |___________________________________|
|                                                          |
|                                                          |_______________________________
|                                                                                          
|
|--Lauretta of FLANDERS 
|  (1150 - 1181)
|                                                           _Albert III NAMUR _____________+
|                                                          | (1027 - 1102)                 
|                       _Godfrey I NAMUR __________________|
|                      | (1068 - 1139) m 1109              |
|                      |                                   |_Ida of BILLUNG _______________+
|                      |                                                                   
|_Adelaide of NAMUR ___|
  (1124 - 1169)        |
                       |                                    _Conrad I ARDENNES-LUXEMBOURG _+
                       |                                   | (1040 - 1086) m 1075          
                       |_Ermesinde of ARDENNES-LUXEMBOURG _|
                         (1075 - 1143) m 1109              |
                                                           |_Clementia of POITIERS ________+
                                                             (1050 - 1141) m 1075