_Madog ap Maredudd MATHRAFAL ______+
                                                                            | (1091 - 1159)                     
                                      _Gruffyd Maelor I ap Madog MATHRAFAL _|
                                     | (.... - 1191)                        |
                                     |                                      |_Susanna ferch Gruffudd ABERFFRAW _+
                                     |                                        (1106 - 1165)                     
 _Madog ap Gruffyd Maelor MATHRAFAL _|
|                                    |
|                                    |                                       _Owain ap Gruffudd ABERFFRAW ______+
|                                    |                                      | (1100 - 1170)                     
|                                    |_Angharad ferch Owain GWYNEDD ________|
|                                                                           |
|                                                                           |___________________________________
|                                                                                                               
|
|--Gruddudd Ial MATHRAFAL 
|  (.... - 1238)
|                                                                            ___________________________________
|                                                                           |                                   
|                                     ______________________________________|
|                                    |                                      |
|                                    |                                      |___________________________________
|                                    |                                                                          
|_Esyllt of UNKNOWN _________________|
                                     |
                                     |                                       ___________________________________
                                     |                                      |                                   
                                     |______________________________________|
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