_William IV POITIERS _+
                                              | (0937 - 0993)        
                         _William V POITIERS _|
                        | (0969 - 1029)       |
                        |                     |_Emma of BLOIS _______+
                        |                       (0950 - 1003)        
 _William VII POITIERS _|
| (1023 - 1058)         |
|                       |                      _Otto-William IVREA __+
|                       |                     | (0955 - 1026)        
|                       |_Agnes of IVREA _____|
|                         (.... - 1068)       |
|                                             |_Ermentrude of ROUCY _+
|                                               (0958 - 1005)        
|
|--Agnes of POITIERS 
|  (1052 - ....)
|                                              ______________________
|                                             |                      
|                        _____________________|
|                       |                     |
|                       |                     |______________________
|                       |                                            
|_Ermesinde of LONGWY __|
                        |
                        |                      ______________________
                        |                     |                      
                        |_____________________|
                                              |
                                              |______________________