_Goronwy ap Tudur Hen GWYNEDD __+
                                                                     | (1300 - 1331)                  
                                     _Tudur ap Goronwy GWYNEDD ______|
                                    | (1310 - 1367)                  |
                                    |                                |_Gwerfyl ferch Madog of HENDWR _
                                    |                                                                 
 _Maredudd ap Tudur GWYNEDD ________|
| (.... - 1406)                     |
|                                   |                                 _Tomos ap Llewelyn of UNKNOWN __
|                                   |                                |                                
|                                   |_Marged ferch Tomos of UNKNOWN _|
|                                                                    |
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|                                                                                                     
|
|--Owen TUDOR 
|  (1400 - 1460)
|                                                                     ________________________________
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|                                   |                                                                 
|_Margaret ferch Dafydd of UNKNOWN _|
                                    |
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