_Cynan ap Iago _____________________________+
                                                           | (1014 - ....)                              
                                    _Gruffydd ap Cynan ____|
                                   | (1055 - 1137) m 1095  |
                                   |                       |_Ranult | Rhanullt | Ragnhildir ingen Olaf _+
                                   |                                                                    
 _Owain Fawr Gwynedd ap Gruffydd __|
| (1100 - 1169)                    |
|                                  |                        _Owain ap Edwin ____________________________+
|                                  |                       |                                            
|                                  |_Angharad ferch Owain _|
|                                    (1065 - 1162) m 1095  |
|                                                          |_daughter __________________________________+
|                                                                                                       
|
|--Gwenllian 
|  
|                                                           ____________________________________________
|                                                          |                                            
|                                   _______________________|
|                                  |                       |
|                                  |                       |____________________________________________
|                                  |                                                                    
|_Christina | Cristin ferch Gronw _|
  (1105 - ....)                    |
                                   |                        ____________________________________________
                                   |                       |                                            
                                   |_______________________|
                                                           |
                                                           |____________________________________________