Mathew ap Ieuan
Mathew ap was born about 1368 in Castel Kibwr, Glamorganshire, Wales.  He died after 1419.

 Jonet verch Jenkyn
Jonet verch was born about 1362 in Penllin, Ogmore, Glamorganshire, Wales.

 Dafydd Mathew
Dafydd was born about 1411 in Llandaff Court, Cibwr, Glamorganshire, Wales.  He died after 1494.