____________________________
                                                |                            
                       _John of TIBETOT ________|
                      |                         |
                      |                         |____________________________
                      |                                                      
 _Robert of TIBETOT __|
| (1341 - 1372)       |
|                     |                          _Bartholomew of BADLESMERE _
|                     |                         | (1275 - 1322)              
|                     |_Margaret of BADLESMERE _|
|                                               |
|                                               |_Margaret of CLARE _________+
|                                                 (1287 - 1333)              
|
|--Elizabeth of TIBETOT 
|  (1370 - 1424)
|                                                ____________________________
|                                               |                            
|                      _________________________|
|                     |                         |
|                     |                         |____________________________
|                     |                                                      
|_Margaret DEINCOURT _|
                      |
                      |                          ____________________________
                      |                         |                            
                      |_________________________|
                                                |
                                                |____________________________