_____________________
                                               |                     
                        _______________________|
                       |                       |
                       |                       |_____________________
                       |                                             
 _John NETTERVILLE ____|
| (1504 - 1550)        |
|                      |                        _____________________
|                      |                       |                     
|                      |_______________________|
|                                              |
|                                              |_____________________
|                                                                    
|
|--Margaret NETTERVILLE 
|  (1526 - 1597)
|                                               _Robert ST LAWRENCE _
|                                              | (1431 - 1486)       
|                       _Nicholas ST LAWRENCE _|
|                      | (1460 - 1526)         |
|                      |                       |_Joan BEAUFORT ______+
|                      |                         (1433 - 1518)       
|_Allison ST LAWRENCE _|
  (1490 - 1530)        |
                       |                        _____________________
                       |                       |                     
                       |_Janet PLUNKETT _______|
                         (1465 - 1526)         |
                                               |_____________________