_______________________
                                              |                       
                         _Robert ST LAWRENCE _|
                        | (1431 - 1486)       |
                        |                     |_______________________
                        |                                             
 _Nicholas ST LAWRENCE _|
| (1460 - 1526)         |
|                       |                      _Edmund BEAUFORT ______+
|                       |                     | (1406 - 1455)         
|                       |_Joan BEAUFORT ______|
|                         (1433 - 1518)       |
|                                             |_Eleanor of BEAUCHAMP _+
|                                               (1407 - 1466)         
|
|--Allison ST LAWRENCE 
|  (1490 - 1530)
|                                              _______________________
|                                             |                       
|                        _____________________|
|                       |                     |
|                       |                     |_______________________
|                       |                                             
|_Janet PLUNKETT _______|
  (1465 - 1526)         |
                        |                      _______________________
                        |                     |                       
                        |_____________________|
                                              |
                                              |_______________________