| | | | | | | | | KIng Henry III PLANTAGENET
1206 - 1272
  | Eleanor Countess of PROVENCE
1223
| Robert I Count of ARTOIS
| Mahaut (Maud) de BRABANT
| Patrick de CHAWORTH
? - 1257
| Hawise de LONDRES
| William (Earl of Warwick) de BEAUCHAMP
1237 - 1298
| Maud (Fitzjohn) FITZGEOFFREY
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| | | | | Edmund "Crouchback" PLANTAGENET
1245 - 1296
| Blanche d'ARTOIS
1245 - 1302
| Sir Patrick (Lord Kidwillyin) CHAWORTH
1250 - 1283
| Isabell de BEAUCHAMP
1266 - 1306
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Henri de BEAUMONT
| Alice COMYN
| Henry "Wryneck" de Lancaster PLANTAGENET
1281 - 1345
| Maud CHAWORTH
1282 - 1316
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John de BEAUMONT
1317 - 1342
| Eleanor PLANTAGENET
1311 - 1372
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Sir Baron Henry BEAUMONT
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| Partners | Child/Children |
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| Baroness Margaret de VERE (1340 - 1398) | Eleanor BEAUMONT (1363)
Sir Baron John Beaumont BEAUMONT
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