Johanna was born about 1309, the daughter of Robert de Willoughby and Margaret Deincourt. The place is not known.
She died on 16 JUL 1350. The place is not known.
Her husband was Gilbert de Umfreville. They were married, but the date and place have not been found. Their only known child was Robert (c1277-1325).
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Johanna de Willoughby |
Robert de Willoughby |
William de Willoughby |
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Alice de Beke |
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Margaret Deincourt |
sir Edmund Deincourt |
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Isabel de Mohun |
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| Event | Date | Details | Source | Multimedia | Notes |
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| Birth | ABT 1309 |
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| Death | 16 JUL 1350 |
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