Efa was born about 1299 in Bryscedwyn, Llandello Tal, Glamorganshire, Cymru, the daughter of unknown parents.
Her husband was Lleision ap Rhys. They were married, but the date and place have not been found. Their only known child was Ieuan ap Lleision (c1302-?).
| Event | Date | Details | Source | Multimedia | Notes | ||
|---|---|---|---|---|---|---|---|
| Birth | ABT 1299 |
|