__
                                             |  
                       ______________________|
                      |                      |
                      |                      |__
                      |                         
 _Thebaud of VERDUN __|
|                     |
|                     |                       __
|                     |                      |  
|                     |______________________|
|                                            |
|                                            |__
|                                               
|
|--Margery of VERDUN 
|  
|                                             __
|                                            |  
|                      _Edmund MORTIMER _____|
|                     |                      |
|                     |                      |__
|                     |                         
|_Maud of MORTIMER ___|
                      |
                      |                       __
                      |                      |  
                      |_Margaret of FIENNES _|
                                             |
                                             |__