Cecily was born about 1380 in Llan Wern, Llebenydd, Monmouthshire, Galles, the daughter of unknown parents.
Her husband was Jenkyn ap Philip. They were married, but the date and place have not been found. Their four known children were Morgan ap Jenkin (1413-1472), Gwyllim ap Jenkin (c1408-1482), Gwelyn verch Jenkin (c1402-?) and Jenkyn ap Jenkin (c1404-?).
| Event | Date | Details | Source | Multimedia | Notes | ||
|---|---|---|---|---|---|---|---|
| Birth | ABT 1380 |
|