| | 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 | | |
| | William Morgan of Llantarnam …–… | | |
| | Edward Morgan of Llantarnam and Penrice, MP …–… | | |
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| | Philip Morgan of Langstone …–… | | |
| | Morgan ap Llewellyn Lord of St. Clere and Tredegar 1330–1384 | | | | Rhys ap Gronwy Lord of Kybor …–… |
| | | Llewellyn ap Ivor Lord of St. Clere …–… Angharad verch Morgan 1304–1334 | | | | | | | | Llewellyn Lleia ap Ivor …–… | | |
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| | | Sir Morgan ap Maredudd 1270–1331 | | | | Maredudd ap Gruffudd 1234–1275 | | | | Gruffudd ap Maredudd Gethin 1204–1278 | | |
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