_Alexander STEWART __+
                                            |                     
                       _Alexander STEWART __|
                      |                     |
                      |                     |_____________________
                      |                                           
 _William STEWART ____|
| (1356 - ....)       |
|                     |                      _____________________
|                     |                     |                     
|                     |_____________________|
|                                           |
|                                           |_____________________
|                                                                 
|
|--John STEWART 
|  (1366 - 1420)
|                                            _____________________
|                                           |                     
|                      _____________________|
|                     |                     |
|                     |                     |_____________________
|                     |                                           
|_Isabel STEWART _____|
                      |
                      |                      _____________________
                      |                     |                     
                      |_____________________|
                                            |
                                            |_____________________