Nielsen Hayden genealogy
Family: John of Gaunt / Blanche of Lancaster (F9684)
m. May 1359Edward III, King of England (1312-1377) 
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Philippa of Hainault, Queen Consort of England (1314-1359)
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Edward of Woodstock (1330-1376)  |
| Lionel of Antwerp (1338-1368) |
| Edmund of Langley (1341-1402) |
| Thomas of Woodstock (1355-1397) |
| Henry of Grosmont (1314-1361)
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| Isabel de Beaumont ( -1356)
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| John of Gaunt (1340-1399)
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| Blanche of Lancaster (1346-1368)
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| Philippa of Lancaster (1360-1415) |
| Henry IV, King of England (1367-1413) |