_John FITZROBERT ____
                                            |                     
                       _Roger FITZJOHN _____|
                      |                     |
                      |                     |_Ada of BALIOL ______
                      |                                           
 _Robert FITZROGER ___|
|                     |
|                     |                      _____________________
|                     |                     |                     
|                     |_Isabel LNU _________|
|                                           |
|                                           |_____________________
|                                                                 
|
|--Euphemia de Clavering FITZROBERT 
|  (1266 - 1320)
|                                            _____________________
|                                           |                     
|                      _____________________|
|                     |                     |
|                     |                     |_____________________
|                     |                                           
|_Margery LA ZOUCHE __|
                      |
                      |                      _____________________
                      |                     |                     
                      |_____________________|
                                            |
                                            |_____________________