_Charles I CAROLINGIAN ____+
                                                  | (0747 - 0813) m 0771      
                           _Louis I CAROLINGIAN __|
                          | (0778 - 0840)         |
                          |                       |_Hildegard of UDALRICHING _+
                          |                         (0754 - 0783) m 0771      
 _Charles II CAROLINGIAN _|
| (0823 - 0877) m 0870    |
|                         |                        _ WELF I___________________+
|                         |                       | (0776 - 0825)             
|                         |_Judith of WELF _______|
|                           (0797 - 0843)         |
|                                                 |_Hedwig of SAXONY _________+
|                                                   (0778 - 0843)             
|
|--Drogo CAROLINGIAN 
|  (0872 - 0873)
|                                                  ___________________________
|                                                 |                           
|                          _Bivin BIVINID ________|
|                         | (0810 - 0863)         |
|                         |                       |___________________________
|                         |                                                   
|_Richilde of BIVINID ____|
  (0845 - 0910) m 0870    |
                          |                        _Boso BOSONID _____________
                          |                       | (0800 - 0855)             
                          |_Richildis of BOSONID _|
                            (.... - 0883)         |
                                                  |_Engeltrude of UNKNOWN ____