_Odo I of BLOIS _________+
                                                | (0950 - 0995)           
                       _Odo II BLOIS ___________|
                      | (0983 - 1037) m 1005    |
                      |                         |_Bertha of WELF _________+
                      |                           (0964 - 1009)           
 _Theobald III BLOIS _|
| (1012 - 1089)       |
|                     |                          _Robert I of AUVERGNE ___+
|                     |                         | (0970 - 1032)           
|                     |_Ermengarde of AUVERGNE _|
|                       (.... - 1042) m 1005    |
|                                               |_Ermengarde of PROVENCE _+
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|
|--Stephen Henry BLOIS 
|  (1045 - 1102)
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|                     |                                                   
|_Gersent of LE MANS _|
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