_Merfyn Frych MANAW __________+
                                                             | (0790 - 0844)                
                             _Rhodri Mawr MANAW _____________|
                            | (0820 - 0878)                  |
                            |                                |_Nest ferch Cadell GWRTHEYRN _+
                            |                                                               
 _Cadell ap Rhodri DINEFWR _|
| (0850 - 0909)             |
|                           |                                 _Meurig ap DYFNWALLON ________
|                           |                                | (0800 - 0871)                
|                           |_Angharad ferch Meurig GWYNEDD _|
|                             (0825 - 0900)                  |
|                                                            |______________________________
|                                                                                           
|
|--Cadwgan ap Cadell DINEFWR 
|  
|                                                             ______________________________
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|                            ________________________________|
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|                           |                                                               
|_Rheingar of UNKNOWN ______|
                            |
                            |                                 ______________________________
                            |                                |                              
                            |________________________________|
                                                             |
                                                             |______________________________