_Edmund of Langley PLANTAGENET _+
                                                     | (1341 - 1402)                  
                       _Richard of Conisbrough YORK _|
                      | (1375 - 1415)                |
                      |                              |_Isabella of IVREA _____________+
                      |                                (1355 - 1392)                  
 _Richard YORK _______|
| (1411 - 1460) m 1424|
|                     |                               _Roger of MORTIMER _____________
|                     |                              |                                
|                     |_Anne of MORTIMER ____________|
|                       (1388 - 1411)                |
|                                                    |________________________________
|                                                                                     
|
|--Margaret of YORK 
|  (1446 - 1503)
|                                                     _John of NEVILLE _______________+
|                                                    | (1337 - 1388) m 1357           
|                      _Ralph of NEVILLE ____________|
|                     | (1364 - 1425)                |
|                     |                              |_Maud of PERCY _________________
|                     |                                (1335 - 1378) m 1357           
|_Cecily of NEVILLE __|
  (1415 - 1495) m 1424|
                      |                               _John of Gaunt PLANTAGENET _____+
                      |                              | (1339 - 1398)                  
                      |_Joan BEAUFORT _______________|
                        (1375 - 1440)                |
                                                     |_Katherine ROET ________________+
                                                       (1350 - 1403)