Gladwys was born about 1290, the daughter of unknown parents. The place is not known.
Her husband was Madog Vychan ap Madog. They were married, but the date and place have not been found. Their only known child was Margred verch Madog Vychan (c1310-?).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1290 |
|