_______________________
                                                   |                       
                            _Thomas of ELMEDON ____|
                           | (1359 - 1416)         |
                           |                       |_______________________
                           |                                               
 _William of ELMEDON ______|
| (1381 - 1447) m 1411     |
|                          |                        _______________________
|                          |                       |                       
|                          |_______________________|
|                                                  |
|                                                  |_______________________
|                                                                          
|
|--William of ELMEDON 
|  
|                                                   _Thomas of UMFREVILLE _+
|                                                  |                       
|                           _Thomas of UMFREVILLE _|
|                          |                       |
|                          |                       |_Joan of RODDAM _______
|                          |                                               
|_Elizabeth of UMFREVILLE _|
   m 1411                  |
                           |                        _Thomas GREY __________
                           |                       |                       
                           |_Agnes GREY ___________|
                                                   |
                                                   |_Margaret PRESSENE ____+
                                                     (1332 - 1383)