_Otto-William IVREA __+
                                            | (0955 - 1026)        
                       _Reginald I IVREA ___|
                      | (0986 - 1057)       |
                      |                     |_Ermentrude of ROUCY _+
                      |                       (0958 - 1005)        
 _William I IVREA ____|
| (1020 - 1087)       |
|                     |                      _Richard II NORMANDY _+
|                     |                     | (0980 - 1026)        
|                     |_Alice of NORMANDY __|
|                                           |
|                                           |_Judith of BRITTANY __+
|                                                                  
|
|--Guy IVREA 
|  
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|                     |                     |______________________
|                     |                                            
|_Stephanie LNU ______|
                      |
                      |                      ______________________
                      |                     |                      
                      |_____________________|
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                                            |______________________