Family Group Sheet| FATHER | | John "Duke of Lancaster" Plantagenet KG (99CX-4Y3) | | BIRTH | about March 1340 | Abbaye De St Bavon, Ghent, Flandre-Orientale (Flanders) | | DEATH | 3 February 1399 | Leicester Castle, Leicester, Leicestershire, England | | REF # | | 284572; | | REF # | | 300160; | | REF # | | 60; | | MARRIAGE | 13 January 1396 | Katherine Roet (GHYY-13C); Lincoln Cathedral, Lincoln, England | | MARRIAGE | 13 May 1359 | Blanche "Countess of Derby, Duchess of Lancaster" Plantagenet (LZ2B-6YG); Queen's Chapel, Reading, Berkshire, England | | MARRIAGE | 29 September 1371 | Constanza "Infanta, Duchess of Lancaster" Castilla LG (LH7Q-C3F); Roquefort, near Bordeaux in France | | FATHER | Edward III "King of England" (93RN-C7J) | | MOTHER | Philippa Hainaut (9Z8W-FY1) | | | | MOTHER | |
| | | CHILDREN | | 1. | Blanche Lancaster FEMALE | | | BIRTH | about 1357 | | | REF # | | 8866545; | | REF # | | 9292253; | | REF # | | 60; |
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