Gwenllian was born in 1296 in Rhuddlan, Flintshire, Cymru, the daughter of unknown parents.
Her husband was Philippe II de Walbieffe. They were married, but the date and place have not been found. Their only known child was Elisbeth (1318-?).
| Event | Date | Details | Source | Multimedia | Notes | ||
|---|---|---|---|---|---|---|---|
| Birth | 1296 |
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