Family: 1st Duke of York Edmund Langley Plantagenet / Isabel Perez Leon (F4664)
m. 1 Jan 1372
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Male
1st Duke of York Edmund Langley Plantagenet
Birth 5 Jun 1341 Kings Langley, Hertfordshire, England 
Death 1 Aug 1402 Langley, Hertfordshire, England Burial Kings Langley, Hertfordshire, England Marriage 1 Jan 1372 [1] Hertford, Hertfordshire, England [1] Father King of England Edward III of Windsor Plantagenet | F4653 Group Sheet Mother Philippa d'Avesnes | F4653 Group Sheet
Female
Isabel Perez Leon
Birth 1355 Tordesillas, Valladolid, Castilla-Leon, Spain Death 23 Dec 1392 Hertfordshire, England Burial Kings Langley, Hertfordshire, England Father Pedro de Castilla, I | F4659 Group Sheet Mother Maria Juana de Padilla | F4659 Group Sheet
Male
2nd Duke of York Edward Plantagenet
Birth 1373 Norwich, Norfolk, England Death 25 Oct 1415 Pas-de-Calais, Nord-Pas-de-Calais, France Burial Spouse Phillippia de Mohun | F4668 Marriage 1396
Female
Constance Langley Plantagenet
Birth 1374 Yorkshire, England Death 28 Nov 1416 Reading, Berkshire, England Burial Reading, Berkshire, England Spouse Earl of Gloucester Thomas Le Despencer | F4663 Marriage 16 Apr 1395 Bristol, Gloucestershire, England Spouse 4th Earl of Kent Edmund Holland | F4648 Marriage 24 Jan 1407
Male
1st Earl of Cambridge Richard of Conisburgh Plantagenet
Birth Sep 1375 Conisbrough, Yorkshire, England Death 5 Aug 1415 Southampton, Hampshire, England Burial 1415 Southampton, Hampshire, England Spouse Anne Mortimer | F4654 Marriage 23 May 1408 Conisbrough, Yorkshire, England Spouse Maud de Clifford | F4658 Marriage 1414 Conisbrough, Yorkshire, England
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Notes Married:
- Hertford Castle
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Sources - [S660] Heritage Consulting, Millennium File, (Name: Ancestry.com Operations Inc; Location: Provo, UT, USA; Date: 2003;).
- [S660] Heritage Consulting, Millennium File, (Name: Ancestry.com Operations Inc; Location: Provo, UT, USA; Date: 2003;).