_Robert of UMFREVILLE _+
                                                |                       
                         _Thomas of UMFREVILLE _|
                        |                       |
                        |                       |_Eleanor LNU __________
                        |                                               
 _Thomas of UMFREVILLE _|
|                       |
|                       |                        _______________________
|                       |                       |                       
|                       |_Joan of RODDAM _______|
|                                               |
|                                               |_______________________
|                                                                       
|
|--Elizabeth of UMFREVILLE 
|  
|                                                _______________________
|                                               |                       
|                        _Thomas GREY __________|
|                       |                       |
|                       |                       |_______________________
|                       |                                               
|_Agnes GREY ___________|
                        |
                        |                        _William PRESSENE _____
                        |                       | (1308 - 1355)         
                        |_Margaret PRESSENE ____|
                          (1332 - 1383)         |
                                                |_______________________