_William ap Thomas HERBERT ____________+
                                            | (1385 - 1445) m 1421                  
                       _William HERBERT ____|
                      | (1423 - 1469) m 1445|
                      |                     |_Gwladys ferch Dafydd Gam BRYCHEINIOG _
                      |                       (1380 - 1454) m 1421                  
 _William HERBERT ____|
| (1455 - 1491)       |
|                     |                      _______________________________________
|                     |                     |                                       
|                     |_Anne DEVEREUX ______|
|                       (1430 - 1486) m 1445|
|                                           |_______________________________________
|                                                                                   
|
|--Elizabeth HERBERT 
|  (1476 - 1507)
|                                            _______________________________________
|                                           |                                       
|                      _____________________|
|                     |                     |
|                     |                     |_______________________________________
|                     |                                                             
|_Mary WYDEVILLE _____|
  (1456 - 1481)       |
                      |                      _______________________________________
                      |                     |                                       
                      |_____________________|
                                            |
                                            |_______________________________________