_William BEAUMONT ___+
                                            | (1285 - ....)       
                       _Richard BEAUMONT ___|
                      | (1320 - ....)       |
                      |                     |_____________________
                      |                                           
 _John of BEAUMONT ___|
| (1340 - 1378)       |
|                     |                      _____________________
|                     |                     |                     
|                     |_____________________|
|                                           |
|                                           |_____________________
|                                                                 
|
|--William BEAUMONT 
|  (1367 - 1406)
|                                            _____________________
|                                           |                     
|                      _____________________|
|                     |                     |
|                     |                     |_____________________
|                     |                                           
|_Joan CRAWTHORNE ____|
  (1345 - 1428)       |
                      |                      _____________________
                      |                     |                     
                      |_____________________|
                                            |
                                            |_____________________