_Einion ab Owain DINEFWR _+
                                                              | (0933 - 0984)            
                                  _Caddell ap Einion DINEFWR _|
                                 | (0953 - 1018)              |
                                 |                            |_Nest OWAIN ______________
                                 |                                                       
 _Tewdwr ap Caddell DINEFWR _____|
| (1000 - 1093)                  |
|                                |                             __________________________
|                                |                            |                          
|                                |_Elinor verch GWERYSTAN ____|
|                                                             |
|                                                             |__________________________
|                                                                                        
|
|--Rhys ap Tewdwr DINEFWR 
|  (1040 - 1093)
|                                                              __________________________
|                                                             |                          
|                                 ____________________________|
|                                |                            |
|                                |                            |__________________________
|                                |                                                       
|_Gwenllian verch Gwyn of DYFED _|
                                 |
                                 |                             __________________________
                                 |                            |                          
                                 |____________________________|
                                                              |
                                                              |__________________________