Joan was born about 1308 in Elmley castle, Worcestershire, England, the daughter of unknown parents.
She died on 22 FEB 1384 in Howden, East Riding, Yorkshire, England.
Her husband was sir Brian de Thornhill. They were married, but the date and place have not been found. Their only known child was Simon (c1331-1369).
| Event | Date | Details | Source | Multimedia | Notes | ||
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| Birth | ABT 1308 |
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| Death | 22 FEB 1384 |
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