_Robert V of BÉTHUNE __+
                                                     |                        
                           _William II of BÉTHUNE __|
                          | (.... - 1214) m 1190     |
                          |                          |_Adelaide of SAINT-POL _
                          |                                                   
 _Robert VII BÉTHUNE ____|
| (1201 - 1248)           |
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|                         |_Mathilda of DENDERMONDE _|
|                           (.... - 1224) m 1190     |
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|                                                                             
|
|--Matilda of BÉTHUNE 
|  (.... - 1263)
|                                                     ________________________
|                                                    |                        
|                          __________________________|
|                         |                          |
|                         |                          |________________________
|                         |                                                   
|_Elisabeth of MORIALMEZ _|
                          |
                          |                           ________________________
                          |                          |                        
                          |__________________________|
                                                     |
                                                     |________________________