The St. John Genealogy Project
Origin and Ancestry DNA Database & Electronic Archive
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 MaleJohn of Gaunt, Duke of Aquitaine, Duke of Lancaster |
| Birth | 1340 | St. Bavon's Abbey, Ghent, Flanders, Belgium  |
| Death | 1399 | |
| Burial | St. Paul Cathedral, London, Middlesex, England |
|
| Marriage | 1372 [1] | |
| Type | Husband - 2nd Marriage | |
| Other Spouse | Blanche of Lancaster | F339082 (Husband - 1st Marriage) | |
| Marriage | 1359 | |
| Other Spouse | Catherine de Roët | F314256 (Husband - 3rd Marriage) | |
| Marriage | 13 Jan 1396 | |
| Father | Edward III Plantagenet, King of England | F315602 Group Sheet | |
| Mother | Philippa Hainaut, Plantagenet | F315602 Group Sheet | |
 FemaleConstance de Castilla y Leon |
| Birth | of, , Castilla, Spain |
|
| Death | Yes, date unknown | |
| Burial | ||
| Father | ||
| Mother | ||
| Notes |  Notes (Log in) |
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