_Bleddyn ap Cynfyn MATHRAFAL _+
                                                                     | (1025 - 1075) m 1044         
                                     _Maredudd ap Bleddyn MATHRAFAL _|
                                    | (1047 - 1131)                  |
                                    |                                |_Haer ferch MEIRON ___________
                                    |                                   m 1044                      
 _Madog ap Maredudd MATHRAFAL ______|
| (1091 - 1159)                     |
|                                   |                                 ______________________________
|                                   |                                |                              
|                                   |_Hunedd ferch EINUDD ___________|
|                                     (1063 - 1132)                  |
|                                                                    |______________________________
|                                                                                                   
|
|--Gruffyd Maelor I ap Madog MATHRAFAL 
|  (.... - 1191)
|                                                                     _Cynan ap Iago ABERFFRAW _____+
|                                                                    | (1014 - 1063)                
|                                    _Gruffudd ap Cynan ABERFFRAW ___|
|                                   | (1055 - 1137) m 1082           |
|                                   |                                |_Ragnaillt of DUBLIN _________
|                                   |                                                               
|_Susanna ferch Gruffudd ABERFFRAW _|
  (1106 - 1165)                     |
                                    |                                 _Owain ap Edwin DINEFWR ______+
                                    |                                |                              
                                    |_Angharad ferch Owain DINEFWR __|
                                      (1065 - 1162) m 1082           |
                                                                     |______________________________