| | Thomas Morgan of Machen 1589–1664 | | |
| | Sir William Morgan …–1653 | | |
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| | | | | | Sir John Morgan 1428–1492 | | | | Jevan ap Llewellyn ap Morgan Lord of St. Clere and Tredegar 1415–1448 Elizabeth ap Llewellyn …–… | | | | Llewellyn ap Morgan 1366–1410 | | | | Morgan ap Llewellyn Lord of St. Clere and Tredegar 1330–1384 | | |
| | | David Vaughan ap David ap Llewellyn ap Philip …–… |
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| | | Thomas ap Llewellyn ap Howell ap Eynon Sais …–… |
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