_Theobald I BLOIS _____________+
                                                    | (0913 - 0977) m 0943          
                           _Odo I of BLOIS _________|
                          | (0950 - 0995)           |
                          |                         |_Luitgarde of HERBERTIAN ______+
                          |                           (0915 - 0978) m 0943          
 _Odo II BLOIS ___________|
| (0983 - 1037) m 1005    |
|                         |                          _Conrad I WELF ________________+
|                         |                         | (0925 - 0993)                 
|                         |_Bertha of WELF _________|
|                           (0964 - 1009)           |
|                                                   |_Matilda of CAROLINGIAN _______+
|                                                     (0943 - 0981)                 
|
|--Bertha of BLOIS 
|  (1005 - 1080)
|                                                    _William IV of AUVERGNE _______+
|                                                   | (.... - 1016)                 
|                          _Robert I of AUVERGNE ___|
|                         | (0970 - 1032)           |
|                         |                         |_______________________________
|                         |                                                         
|_Ermengarde of AUVERGNE _|
  (.... - 1042) m 1005    |
                          |                          _William I of PROVENCE ________+
                          |                         | (0950 - 0993) m 0984          
                          |_Ermengarde of PROVENCE _|
                                                    |
                                                    |_Adelaide-Blanche of INGELGER _+
                                                      (0940 - 1026) m 0984