_Goronwy ap Tudur Hen GWYNEDD __+
                                                             | (1300 - 1331)                  
                             _Tudur ap Goronwy GWYNEDD ______|
                            | (1310 - 1367)                  |
                            |                                |_Gwerfyl ferch Madog of HENDWR _
                            |                                                                 
 _Goronwy ap Tudur GWYNEDD _|
| (.... - 1382)             |
|                           |                                 _Tomos ap Llewelyn of UNKNOWN __
|                           |                                |                                
|                           |_Marged ferch Tomos of UNKNOWN _|
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|
|--Morfydd ferch Goronwy GWYNEDD 
|  
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