Genealogy of the Bryan and Martin Families
Isabel Mauduit
- 1260(
= Descendancy chart to this point, 
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= Collapse)
- 1 Isabel Mauduit [1] d. cir 1260
- Walkeline Beauchamp, of Elmley d. cir 1260
- 2 William de Beauchamp [1.1] d. 1298
- Maud Fitzjohn d. cir 1300
- 3 Guy de Beauchamp [1.1.1] d. 1315
- Alice de Toesni d. cir 1315
- 4 Thomas Beauchamp, 11th Earl of Warwick [1.1.1.1] b. 1314 d. 1367
- Catherine Mortimer b. cir 1315
- 5 William Beauchamp, Lord Bergavenny [1.1.1.1.1] d. 1411
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- 5 Philippa Beauchamp [1.1.1.1.2] b. cir 1345
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- 5 Thomas Beauchamp, 12th Earl Warwick [1.1.1.1.3] d. 1401
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- 5 William Beauchamp, Lord Bergavenny [1.1.1.1.1]
- 4 Thomas Beauchamp, 11th Earl of Warwick [1.1.1.1]
- 3 Guy de Beauchamp [1.1.1]
- 2 William de Beauchamp [1.1]