_Marshal, Gilbert (The Marshal) [-father of-] _
                                                              |                                               
                             _Gilbert Marshal ________________|
                            | (.... - 1130)                   |
                            |                                 |_______________________________________________
                            |                                                                                 
 _John FitzGilbert Marshal _|
| (.... - 1165) m 1141      |
|                           |                                  _______________________________________________
|                           |                                 |                                               
|                           |_________________________________|
|                                                             |
|                                                             |_______________________________________________
|                                                                                                             
|
|--William Marshal 
|  (1146 - 1219)
|                                                              _Edward de Salisbury __________________________+
|                                                             | (1060 - ....)                                 
|                            _Walter FitzEdward de Salisbury _|
|                           | (.... - 1147)                   |
|                           |                                 |_______________________________________________
|                           |                                                                                 
|_Sibyl de Salisbury _______|
   m 1141                   |
                            |                                  _Patrick de Chaworth __________________________+
                            |                                 |                                               
                            |_Maud 'Sibyl' de Chaworth _______|
                              (.... - 1147)                   |
                                                              |_Maud de Hesdin _______________________________+