| # | Children | Name | Born | Died | Father | Mother |
| 1 | | | b. 1425 | d. 1470 | Sir Daffydd "David" ap Matthew Llandaf | Lady Gwenllian Verch Dafydd Herbert |
| 2 | | | b. 1438 | d. 25 Jul 1470 | Sir Daffydd "David" ap Matthew Llandaf | Lady Gwenllian Verch Dafydd Herbert |
| 3 | | | b. 1440 | d. 10 Mar 1488 | Sir Daffydd "David" ap Matthew Llandaf | Lady Gwenllian Verch Dafydd Herbert |
| 4 | | | b. 1440 | d. DECEASED | Sir Daffydd "David" ap Matthew Llandaf | Lady Gwenllian Verch Dafydd Herbert |
| 5 | | | b. 1422 | d. 1428 | Sir Dafydd Mathew, Lord of Landaff, Baron of Glamorgan | Lady Gwenllian Verch Dafydd Herbert |
| 6 | | | b. 1422 | d. 1504 | Sir Dafydd Mathew, Lord of Landaff, Baron of Glamorgan | Lady Gwenllian Verch Dafydd Herbert |
| 7 | | | b. 1425 | d. 1426 | Sir Dafydd Mathew, Lord of Landaff, Baron of Glamorgan | Lady Gwenllian Verch Dafydd Herbert |
| 8 | | | b. Abt 1431 | d. 29 Mar 1461 | Sir Dafydd Mathew, Lord of Landaff, Baron of Glamorgan | Lady Gwenllian Verch Dafydd Herbert |
| 9 | | | b. 1431 | | Sir Dafydd Mathew, Lord of Landaff, Baron of Glamorgan | Lady Gwenllian Verch Dafydd Herbert |
| 10 | | | b. 1434 | d. 1470 | Sir Dafydd Mathew, Lord of Landaff, Baron of Glamorgan | Lady Gwenllian Verch Dafydd Herbert |
| 11 | | | b. 1436 | d. 1485 | Sir Dafydd Mathew, Lord of Landaff, Baron of Glamorgan | Lady Gwenllian Verch Dafydd Herbert |
| 12 | | | b. Abt 1436 | d. DECEASED | Sir Dafydd Mathew, Lord of Landaff, Baron of Glamorgan | Lady Gwenllian Verch Dafydd Herbert |
| 13 | | | b. 1440 | d. 1443 | Sir Dafydd Mathew, Lord of Landaff, Baron of Glamorgan | Lady Gwenllian Verch Dafydd Herbert |
| 14 | | | b. 1440 | d. 1534 | Sir Dafydd Mathew, Lord of Landaff, Baron of Glamorgan | Lady Gwenllian Verch Dafydd Herbert |
| 15 | | | b. Abt 1470 | d. DECEASED | Sir Dafydd Mathew, Lord of Landaff, Baron of Glamorgan | Lady Gwenllian Verch Dafydd Herbert |