_Baldwin I FLANDERS ____
                                                | (.... - 0879) m 0862   
                        _Baldwin II FLANDERS ___|
                       | (0865 - 0918)          |
                       |                        |_Judith of CAROLINGIAN _+
                       |                          (0844 - 0870) m 0862   
 _Arnulf I FLANDERS ___|
| (0890 - 0965)        |
|                      |                         _Alfred WESSEX _________+
|                      |                        | (0847 - 0899) m 0868   
|                      |_Ælfthryth of WESSEX __|
|                        (0877 - 0929)          |
|                                               |_Ealhswith of MERCIA ___+
|                                                 (0852 - 0902) m 0868   
|
|--Hildegarde of FLANDERS 
|  (.... - 0990)
|                                                _Herbert I CAROLINGIAN _+
|                                               | (0848 - 0907)          
|                       _Herbert II HERBERTIAN _|
|                      | (0884 - 0942)          |
|                      |                        |_Bertha of MATFRIEDE ___
|                      |                          (.... - 0916)          
|_Adele of HERBERTIAN _|
  (0910 - 0960)        |
                       |                         _Robert I ROBERTIAN ____+
                       |                        | (0866 - 0923)          
                       |_Adele of ROBERTIAN ____|
                                                |
                                                |_Aélis of MAINE _______
                                                  (0868 - 0894)