MaleJohn of Gaunt, 1st Duke of Lancaster |
| Birth | 6 Mar 1340 | Belgium |
| Death | 3 Feb 1399 | Leicester Castle, Leicestershire, England |
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| Other Spouse | Katherine de Roet Swynford, Duchess of Lancaster | F202 | |
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| Father | Edward III, King of England | F663 Group Sheet | |
| Mother | Philippa of Hainault, Queen consort of England | F663 Group Sheet | |
FemaleBlanche of Lancaster, Duchess of Lancaster |
| Birth | 25 Mar 1345 | Bolingbroke Castle, Lincolnshire, England |
| Death | 12 Sep 1368 | Tutbury Castle, Staffordshire, England |
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MaleHenry IV, King of England |
| Birth | 15 Apr 1367 | Bolingbroke Castle, Lincolnshire, England |
| Death | 20 Mar 1413 | Palace of Westminster, London, England |
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| Spouse | Mary de Bohn | F291 | |
| Marriage | ||