_William of HARCOURT _+
                                                | (1100 - 1154) m 1125 
                        _Robert II of HARCOURT _|
                       | (1142 - 1212) m 1179   |
                       |                        |_Agnes of AMBOISE ____
                       |                          (1102 - 1153) m 1125 
 _Richard of HARCOURT _|
| (1180 - 1236)        |
|                      |                         _Robert of BEAUMONT __+
|                      |                        | (1142 - 1212) m 1165 
|                      |_Jeanne of BEAUMONT ____|
|                        (1165 - 1186) m 1179   |
|                                               |_Matilda of CORNWALL _
|                                                 (1143 - 1207) m 1165 
|
|--John I HARCOURT 
|  (1200 - 1288)
|                                                ______________________
|                                               |                      
|                       ________________________|
|                      |                        |
|                      |                        |______________________
|                      |                                               
|_Mathilde TESSON _____|
  (.... - 1242)        |
                       |                         ______________________
                       |                        |                      
                       |________________________|
                                                |
                                                |______________________