_John II HARCOURT __________+
                                              | (1240 - 1302) m 1288       
                         _John III HARCOURT __|
                        | (1265 - 1329) m 1302|
                        |                     |_Jeanne of CHÂTELLERAULT __
                        |                        m 1288                    
 _John IV HARCOURT _____|
| (1290 - 1346)         |
|                       |                      _Godfrey REGINAR ___________+
|                       |                     | (.... - 1302)              
|                       |_Alix of REGINAR ____|
|                         (.... - 1315) m 1302|
|                                             |_Jeanne Isabeau of VIERZON _
|                                               (.... - 1296)              
|
|--John V HARCOURT 
|  (1320 - 1356)
|                                              ____________________________
|                                             |                            
|                        _____________________|
|                       |                     |
|                       |                     |____________________________
|                       |                                                  
|_Isabeau of PARTHENAY _|
  (.... - 1357)         |
                        |                      ____________________________
                        |                     |                            
                        |_____________________|
                                              |
                                              |____________________________