_Thomas DEWILBURGHAM _
                                             | (1389 - 1470)        
                       _Thomas WILBRAHAM ____|
                      | (1409 - 1492)        |
                      |                      |_Margaret GOLBORNE ___
                      |                        (1389 - 1450)        
 _William WILBRAHAM __|
| (1435 - 1536)       |
|                     |                       _Thomas SWETENHAM ____
|                     |                      | (1387 - ....)        
|                     |_Margaret SWETENHAM __|
|                       (1413 - 1504)        |
|                                            |_Alice DEOVERTON _____
|                                              (1389 - ....)        
|
|--Margaret WILBRAHAM 
|  (1481 - ....)
|                                             _John EGERTON ________
|                                            | (1404 - 1459)        
|                      _Philip EGERTON ______|
|                     | (1430 - 1474)        |
|                     |                      |_Margaret FITTON _____
|                     |                        (1408 - 1430)        
|_Helena EGERTON _____|
  (1439 - 1512)       |
                      |                       _William MAINWARING __
                      |                      | (1396 - 1499)        
                      |_Margaret MAINWARING _|
                        (1433 - 1495)        |
                                             |_Margaret WARREN _____
                                               (1400 - 1437)