Jean was born about 1347 in Ashperton, Ledbury, Herefordshire, England, the son of Piers de Grandison and Blanche de Mortimer.
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Jean I de Grandison |
Piers de Grandison |
Guillaume de Grandson |
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Sybil de Tregoz |
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Blanche de Mortimer |
Roger de Mortimer |
Edmund Thomas de Mortimer |
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Margaret de Fiennes |
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Joan de Geneville |
Pierre de Joinville |
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Jeanne de Lusignan |
| Event | Date | Details | Source | Multimedia | Notes | ||
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| Birth | ABT 1347 |
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