_John COURTENAY _____+
                                              | (.... - 1415)       
                       _Philip COURTENAY _____|
                      | (1403 - 1463)         |
                      |                       |_Joan CHAMPERNOUN ___
                      |                                             
 _William COURTENAY __|
| (1428 - 1485)       |
|                     |                        _____________________
|                     |                       |                     
|                     |_Elizabeth HUNGERFORD _|
|                                             |
|                                             |_____________________
|                                                                   
|
|--William COURTENAY 
|  (1451 - 1512)
|                                              _____________________
|                                             |                     
|                      _______________________|
|                     |                       |
|                     |                       |_____________________
|                     |                                             
|_Margaret BONVILLE __|
                      |
                      |                        _____________________
                      |                       |                     
                      |_______________________|
                                              |
                                              |_____________________