_Theobald III BLOIS _+
                                             | (1012 - 1089)       
                        _Hugh BLOIS _________|
                       | (1074 - 1130)       |
                       |                     |_Adele of VALOIS ____+
                       |                                           
 _Odo of BLOIS ________|
| (1123 - 1187)        |
|                      |                      _Stephen I IVREA ____+
|                      |                     | (1065 - 1102)       
|                      |_Isabella of IVREA __|
|                                            |
|                                            |_Beatrice of METZ ___+
|                                              (.... - 1116)       
|
|--Louis BLOIS 
|  (.... - 1202)
|                                             _____________________
|                                            |                     
|                       _____________________|
|                      |                     |
|                      |                     |_____________________
|                      |                                           
|_Sibylle of LA FERTE _|
                       |
                       |                      _____________________
                       |                     |                     
                       |_____________________|
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                                             |_____________________