______________________
                                               |                      
                          _____________________|
                         |                     |
                         |                     |______________________
                         |                                            
 _William GILBERT _______|
| (1330 - 1380)          |
|                        |                      ______________________
|                        |                     |                      
|                        |_____________________|
|                                              |
|                                              |______________________
|                                                                     
|
|--William GILBERT 
|  (1380 - 1428)
|                                               _Richard CHAMPERNOUN _
|                                              | (1255 - 1310)        
|                         _Oliver CHAMPERNOUN _|
|                        | (1290 - 1346)       |
|                        |                     |_Joan CORNWALL _______+
|                        |                       (1258 - 1319)        
|_Elizabeth CHAMPERNOUN _|
  (1334 - 1380)          |
                         |                      ______________________
                         |                     |                      
                         |_Eglina VALLETORT ___|
                           (1305 - 1346)       |
                                               |______________________