Lady Mary Plantagenet 
Mary was born about 1320 in Tutbury Castle, Staffordshire, England. Mary's father was Henry Plantagenet, 3rd Earl of Lancaster and her mother was Matilda de Chaworth. Her paternal grandparents were Prince Edmund (Crouchback) of England and Blanche of Artois; her maternal grandparents were Sir Patrick Chaworth and Isabella de Beauchamp. She had three sisters named Matilda, Eleanor and Joan. She died on September 1st, 1362. She was buried in Alnwick, Northumberland, England.General Notes
Children of Lady Mary Plantagenet and Henry de Percy, 3rd Lord Percy
* Sir Henry de Percy, 1st Earl of Northumberland+ b. 10 Nov 1341, d. 20 Feb 1407/81
* Sir Thomas de Percy, 1st and last Earl of Worcester b. 1343, d. 23 Jul 14031
* Mary Percy b. b 1360, d. c 13951
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Ancestor Pedigree Chart
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*There are earlier generations for the ancestor(s) indicated. See their page(s) for details (click name)
- b.05 Mar 1132 in Le Mans, Sarthe, France d.06 Jul 1189 in Chinon, Indre-Et-Loire, France
- b.24 Dec 1166 in Kings Manor House, Oxford, Oxfordshire, England d.18 Oct 1216 in England
- b.~ 1123 in Aquitaine, Bordeaux, France d.31 Mar 1204 in Fontevrault, Anjou, France
- b.10 Oct 1206 in Westminster, London, England d.16 Nov 1272 in Winchester, Hampshire, England
- b.~ 1188 in Angouleme d.31 May 1246
- b.16 Jan 1244 d.05 Jun 1295
- b.~ 1222 in Aix-en-Provence, France d.24 Jan 1291 in Amesbury, England
- b.1281 d.22 Sep 1345
- b.~ 1254 d.02 May 1302 in Paris, France
- b.~ 1320 in Tutbury Castle, Staffordshire, England d.01 Sep 1362
- b.~ 1254 d.~ 1283
- b.1282 d.1322
- b.1237 d.1298
- b.< 1266
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