_Roger ST. MAUR ______+
                                            | (1320 - 1361)        
                       _William ST. MAUR ___|
                      | (1349 - 1391)       |
                      |                     |_Cecily of BEAUCHAMP _+
                      |                                            
 _Roger II SEYMOUR ___|
| (1367 - 1420)       |
|                     |                      ______________________
|                     |                     |                      
|                     |_Margaret BROCKBURY _|
|                       (1351 - 1391)       |
|                                           |______________________
|                                                                  
|
|--John SEYMOUR 
|  (1395 - 1464)
|                                            ______________________
|                                           |                      
|                      _____________________|
|                     |                     |
|                     |                     |______________________
|                     |                                            
|_Maud ESTURNEY ______|
                      |
                      |                      ______________________
                      |                     |                      
                      |_____________________|
                                            |
                                            |______________________