_______________________
                                            |                       
                       _____________________|
                      |                     |
                      |                     |_______________________
                      |                                             
 _John of GREY _______|
|                     |
|                     |                      _______________________
|                     |                     |                       
|                     |_____________________|
|                                           |
|                                           |_______________________
|                                                                   
|
|--Roger of GREY 
|  
|                                            _______________________
|                                           |                       
|                      _John of VERDUN _____|
|                     | (1223 - 1274) m 1266|
|                     |                     |_______________________
|                     |                                             
|_Maud of VERDUN _____|
                      |
                      |                      _Humphrey IV of BOHUN _+
                      |                     | (1208 - 1275)         
                      |_Eleanor of BOHUN ___|
                         m 1266             |
                                            |_Matilda of LUSIGNAN __+
                                              (1210 - 1241)