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| | Britannia Biographies: John of Gaunt, Duke of Lancaster |
 | | In 1359, at Reading Abbey (Berks), he married Blanche, the younger of the two daughters and co-heirs of Henry, Duke of Lancaster, and upon the death of his father-in-law, in 1361, he was advanced to that Dukedom. |
 | | Henry, Duke of Hereford and Lancaster and Earl of Derby, afterwards King Henry IV. |
 | | Thomas Beaufort, Duke of Exeter, KG Joan Beaufort, married, firstly, to Sir Robert Ferrers of Worn and Oversley; and, secondly, to Ralph Neville, Earl of Westmorland. |
| www.britannia.com /bios/royals/jgdklanc.html (780 words) |
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