_Gwriad ap Elidyr MANAW ________
                                                                | (0770 - ....)                  
                                  _Merfyn Frych MANAW __________|
                                 | (0790 - 0844)                |
                                 |                              |_Ethyllt ferch Cynan GWYNEDD ___+
                                 |                                (0770 - 0816)                  
 _Rhodri Mawr MANAW _____________|
| (0820 - 0878)                  |
|                                |                               _Cadell ap Brochfael GWRTHEYRN _+
|                                |                              | (.... - 0808)                  
|                                |_Nest ferch Cadell GWRTHEYRN _|
|                                                               |
|                                                               |________________________________
|                                                                                                
|
|--Gwriad ap Rhodri MANAW 
|  
|                                                                ________________________________
|                                                               |                                
|                                 _Meurig ap DYFNWALLON ________|
|                                | (0800 - 0871)                |
|                                |                              |________________________________
|                                |                                                               
|_Angharad ferch Meurig GWYNEDD _|
  (0825 - 0900)                  |
                                 |                               ________________________________
                                 |                              |                                
                                 |______________________________|
                                                                |
                                                                |________________________________