_Henry PERCY _______________
                                            |                            
                       _Henry PERCY ________|
                      |                     |
                      |                     |_Margaret of NEVILLE _______+
                      |                                                  
 _Henry PERCY ________|
|                     |
|                     |                      ____________________________
|                     |                     |                            
|                     |_Elizabeth MORTIMER _|
|                                           |
|                                           |____________________________
|                                                                        
|
|--Henry PERCY 
|  
|                                            _John of NEVILLE ___________+
|                                           | (1337 - 1388) m 1357       
|                      _Ralph of NEVILLE ___|
|                     | (1364 - 1425)       |
|                     |                     |_Maud of PERCY _____________
|                     |                       (1335 - 1378) m 1357       
|_Eleanor NEVILLE ____|
                      |
                      |                      _John of Gaunt PLANTAGENET _+
                      |                     | (1339 - 1398)              
                      |_Joan BEAUFORT ______|
                        (1375 - 1440)       |
                                            |_Katherine ROET ____________+
                                              (1350 - 1403)