_Owain ap Gruffudd ABERFFRAW _____+
                                                         | (1100 - 1170)                    
                             _Rhodri ap Owain GWYNEDD ___|
                            | (1147 - 1195)              |
                            |                            |_Cristin ferch GORNWY ____________+
                            |                              (1105 - ....)                    
 _Thomas ap Rhodri GWYNEDD _|
|                           |
|                           |                             _Rhys ap Gruffydd DINEFWR ________+
|                           |                            | (1130 - 1197)                    
|                           |_Annest ferch Rhys DINEFWR _|
|                                                        |
|                                                        |_Gwenllian ferch Madog MATHRAFAL _+
|                                                                                           
|
|--Senana ferch Caradog GWYNEDD 
|  (1198 - 1263)
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