_John I HARCOURT ______+
                                                   | (1200 - 1288) m 1239  
                       _John II HARCOURT __________|
                      | (1240 - 1302) m 1288       |
                      |                            |_Alix of BEAUMONT _____
                      |                              (.... - 1275) m 1239  
 _John III HARCOURT __|
| (1265 - 1329) m 1302|
|                     |                             _______________________
|                     |                            |                       
|                     |_Jeanne of CHÂTELLERAULT __|
|                        m 1288                    |
|                                                  |_______________________
|                                                                          
|
|--John IV HARCOURT 
|  (1290 - 1346)
|                                                   _Henry III REGINAR ____+
|                                                  | (1230 - 1260)         
|                      _Godfrey REGINAR ___________|
|                     | (.... - 1302)              |
|                     |                            |_Adelaide of BURGUNDY _+
|                     |                              (1233 - 1273)         
|_Alix of REGINAR ____|
  (.... - 1315) m 1302|
                      |                             _______________________
                      |                            |                       
                      |_Jeanne Isabeau of VIERZON _|
                        (.... - 1296)              |
                                                   |_______________________