_John of Gaunt PLANTAGENET _+
                                                | (1339 - 1398)              
                         _John BEAUFORT ________|
                        | (1371 - 1409)         |
                        |                       |_Katherine ROET ____________+
                        |                         (1350 - 1403)              
 _Edmund BEAUFORT ______|
| (1406 - 1455)         |
|                       |                        ____________________________
|                       |                       |                            
|                       |_Margaret of HOLAND ___|
|                         (1380 - 1439)         |
|                                               |____________________________
|                                                                            
|
|--Margaret BEAUFORT 
|  (1437 - 1474)
|                                                ____________________________
|                                               |                            
|                        _Richard of BEAUCHAMP _|
|                       | (1381 - 1439)         |
|                       |                       |____________________________
|                       |                                                    
|_Eleanor of BEAUCHAMP _|
  (1407 - 1466)         |
                        |                        ____________________________
                        |                       |                            
                        |_Elizabeth BERKELEY ___|
                          (1386 - 1422)         |
                                                |____________________________