_Baldwin III FLANDERS _+
                                             | (0940 - 0962)         
                        _Arnulf II FLANDERS _|
                       | (0961 - 0987)       |
                       |                     |_Matilda of BILLUNG ___+
                       |                       (0935 - 1008)         
 _Arnulf III FLANDERS _|
| (.... - 0990)        |
|                      |                      _Berengar II IVREA ____+
|                      |                     | (0900 - 0966)         
|                      |_Rozala of IVREA ____|
|                        (.... - 1002)       |
|                                            |_Willa of BOSONID _____+
|                                              (0911 - 0970)         
|
|--Baldwin II FLANDERS 
|  (.... - 1027)
|                                             _______________________
|                                            |                       
|                       _____________________|
|                      |                     |
|                      |                     |_______________________
|                      |                                             
|______________________|
                       |
                       |                      _______________________
                       |                     |                       
                       |_____________________|
                                             |
                                             |_______________________