_Robert III STEWART ____+
                                            | (1337 - 1406)          
                       _James I STEWART ____|
                      | (1394 - 1436) m 1424|
                      |                     |_Anabella DRUMMOND _____
                      |                       (1350 - 1401)          
 _James II STEWART ___|
| (1430 - 1460)       |
|                     |                      _John BEAUFORT _________+
|                     |                     | (1403 - 1444)          
|                     |_Joan BEAUFORT ______|
|                       (1404 - 1445) m 1424|
|                                           |_Margaret of BEAUCHAMP _+
|                                             (1410 - 1482)          
|
|--Mary STEWART 
|  
|                                            ________________________
|                                           |                        
|                      _____________________|
|                     |                     |
|                     |                     |________________________
|                     |                                              
|_Mary EGMOND ________|
  (1434 - 1463)       |
                      |                      ________________________
                      |                     |                        
                      |_____________________|
                                            |
                                            |________________________