Duchess of Lancaster Katherine Swynford de Roet

1350 - 1403  (52 years)

• Name	Katherine Swynford de Roet  [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]
  Title	Duchess of Lancaster
  Birth	25 Nov 1350	Abbeville, Somme, Picardie, France   [3, 4, 6, 14]
  Gender	Female
  Burial	1403	Lincoln, Lincolnshire, England   [4, 6, 14, 16]
  	Lincoln Cathedral
  Death	10 May 1403	Anjou, Isere, Rhone-Alpes, France   [3, 4, 6, 14]
  	Buried Lincoln Cathedral, Lincolnshire, England
  Person ID	I7076	Presidents and Royalty
  Last Modified	8 Jun 2025

  
  

  Father	Guilles Paon de Roet
  Relationship	natural
  Family ID	F5351	Group Sheet  |  Family Chart

  
  

  Family	1st Duke of Lancaster John of Gaunt Plantagenet,   b. 24 Jun 1340, Gent, Oost-Vlaanderen, Belgium d. 4 Feb 1399, Leicestershire, England (Age 58 years)
  Marriage	13 Jan 1396  [6]
  Children	> 1. 1st Earl of Somerset John Beaufort,   b. 1373, Lincolnshire, England d. 16 Mar 1410, London, England (Age 37 years)  [Father: natural]  [Mother: natural] > 2. Cardinal Henry Beaufort,   b. 1375, Montmorency, Calvados, Basse-Normandie, France d. 11 Apr 1447, Winchester, Hampshire, England (Age 72 years)  [Father: natural]  [Mother: natural] > 3. Lady Joan Beaufort,   b. 29 Jan 1375, Maine-et-Loire, Pays de la Loire, France d. 13 Nov 1440, Howden, Yorkshire, England (Age 65 years)  [Father: natural]  [Mother: natural]
  Family ID	F4652	Group Sheet  |  Family Chart
  Last Modified	8 Jun 2025

  
  

• Event Map		Birth - 25 Nov 1350 - Abbeville, Somme, Picardie, France Burial - 1403 - Lincoln, Lincolnshire, England Death - 10 May 1403 - Anjou, Isere, Rhone-Alpes, France  = Link to Google Earth
  Pin Legend	: Address       : Location       : City/Town       : County/Shire       : State/Province       : Country       : Not Set

  
  

• Sources

  [S113] Yates Publishing, U.S. and International Marriage Records, 1560-1900, (Name: Ancestry.com Operations Inc; Location: Provo, UT, USA; Date: 2004;), Database online. Source number: ; Source type: ; Number of Pages: ; Submitter Code: . Record for John Gaunt [S724] thePeerage.com, (Name: thePeerage.com; Location: http://thepeerage.com;), Monroe James #323556 http://thepeerage.com/p32356.htm#i323556. [S668] Ancestry.com, Dictionary of National Biography, Volumes 1-20, 22, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2010;). [S666] Ancestry.com, Web: International, Find A Grave Index, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2013;). [S945] Ancestry.com, England, Extracted Parish and Court Records, (Name: Ancestry.com Operations Inc; Location: Provo, UT, USA; Date: 2001;). [S660] Heritage Consulting, Millennium File, (Name: Ancestry.com Operations Inc; Location: Provo, UT, USA; Date: 2003;). [S724] thePeerage.com, (Name: thePeerage.com; Location: http://thepeerage.com;), Beaufort Joan #101973 http://thepeerage.com/p10198.htm#i101973. [S724] thePeerage.com, (Name: thePeerage.com; Location: http://thepeerage.com;), Beaufort Henry #101972 http://thepeerage.com/p10198.htm#i101972. [S668] Ancestry.com, Dictionary of National Biography, Volumes 1-20, 22, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2010;). Record for Henry Beaufort http://search.ancestry.com/cgi-bin/sse.dll?db=dictnatbiogv1&h=79854&indiv=try [S668] Ancestry.com, Dictionary of National Biography, Volumes 1-20, 22, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2010;). Record for Henry Beaufort http://search.ancestry.com/cgi-bin/sse.dll?db=dictnatbiogv1&h=8709&indiv=try [S724] thePeerage.com, (Name: thePeerage.com; Location: http://thepeerage.com;), Beaufort John #101971 http://thepeerage.com/p10198.htm#i101971. [S724] thePeerage.com, (Name: thePeerage.com; Location: http://thepeerage.com;), Neville Ralph #101634 http://thepeerage.com/p10164.htm#i101634. [S668] Ancestry.com, Dictionary of National Biography, Volumes 1-20, 22, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2010;), London, England: Oxford University Press; Volume: Vol 22; Page: 0079 Record for John Earl of Somerset, Marquis of Dorset and Somerset Beaufort. http://search.ancestry.com/cgi-bin/sse.dll?db=1981&h=79856&indiv=try http://search.ancestry.com/cgi-bin/sse.dll?db=1981&h=79856&indiv=try [S892] Biographical Information from Wikipedia, (Name: Wikipedia; Location: en.wikipedia.org;), Swynford Plantagenet, Katherine (1350-1403) Accessed KRM 12 Mar 2020 3:31pm https://en.wikipedia.org/wiki/Katherine_Swynford. https://en.wikipedia.org/wiki/Katherine_Swynford [S1108] Katherine Swynford, http://en.wikipedia.org/wiki/Katherine_Swynford. [S783] Faris, David, Plantagenet Ancestry of Seventeenth-Century Colonists, (Name: Online publication - Provo, UT, USA: Ancestry.com Operations Inc, 2006.Original data - Faris, David. Plantagenet Ancestry of Seventeenth-Century Colonists. Baltimore, MD, USA: Genealogical Publishing Co., 1996.Original data: Faris, David. Plantagenet Ances;). Title Page http://search.ancestry.com/cgi-bin/sse.dll?db=flhg-plantaance7thcencolonists&h=84712&ti=0&indiv=try&gss=pt