_William IV POITIERS _+
                                               | (0937 - 0993)        
                          _William V POITIERS _|
                         | (0969 - 1029)       |
                         |                     |_Emma of BLOIS _______+
                         |                       (0950 - 1003)        
 _William VIII POITIERS _|
| (1025 - 1086)          |
|                        |                      _Otto-William IVREA __+
|                        |                     | (0955 - 1026)        
|                        |_Agnes of IVREA _____|
|                          (.... - 1068)       |
|                                              |_Ermentrude of ROUCY _+
|                                                (0958 - 1005)        
|
|--Agnes of POITIERS 
|  (1052 - 1078)
|                                               ______________________
|                                              |                      
|                         _____________________|
|                        |                     |
|                        |                     |______________________
|                        |                                            
|_Matilda of UNKNOWN ____|
                         |
                         |                      ______________________
                         |                     |                      
                         |_____________________|
                                               |
                                               |______________________