Countess of Westmorland Joan Plantagenet de Beaufort

1375 - 1440  (65 years)

• Name	Joan Plantagenet de Beaufort  [1, 2, 3, 4]
  Title	Countess of Westmorland
  Birth	1375	Anjou, Isère, Rhône-Alpes, France   [1, 3, 4]
  	Beaufort Castle
  Gender	Female
  Death	13 Nov 1440	Howden, Yorkshire, England   [1, 3, 4]
  Burial	Lincolnshire, England   [4]
  	Lincoln Cathedral
  Person ID	I14399	A Tree Called Smith
  Last Modified	21 Jul 2025

  
  

  Father	1st Duke of Lancaster John Gaunt Plantagenet,   b. 14 Mar 1340, Belgium d. 3 Feb 1399, Leicester, Leicestershire, England (Age 58 years)
  Relationship	natural
  Mother	Duchess of Lancaster Katherine de Roet,   b. 1350, Somme, Picardie, France d. 10 May 1403, Lincoln, Lincolnshire, England (Age 53 years)
  Relationship	natural
  Marriage	13 Jan 1396
  Family ID	F1218	Group Sheet  |  Family Chart

  
  

  Family	Knight of the order of the Garter -- 1st Earl of Westmorland, 4th Baron Neville de Raby, Earl Marshal Sir Ralph de Neville, KG,   b. 15 Sep 1363, Durham, England d. 21 Oct 1425, Durham, England (Age 62 years)
  Marriage	29 Nov 1396	Anjou, Isère, Rhône-Alpes, France   [1]
  	Château de Beaufort
  Children	1. 1st Earl of Kent William Neville, KG,   b. Abt 1409, Durham, England d. 9 Jan 1462, Alnwick, Northumberland, England (Age 53 years)  [Father: natural]  [Mother: natural]   2. Duchess of York Lady Cecily de Neville,   b. 31 May 1415, Durham, England d. 31 May 1495, Hertfordshire, England (Age 80 years)  [Father: natural]  [Mother: natural]   3. 1st Baron Latimer George de Neville,   b. 1407, Staindrop, Durham, England d. 18 Oct 1476, Abergavenny, Monmouthshire, Wales (Age 69 years)  [Father: natural]  [Mother: natural]
  Family ID	F5562	Group Sheet  |  Family Chart
  Last Modified	21 Jul 2025

  
  

• Event Map

  Birth - 1375 - Anjou, Isère, Rhône-Alpes, France Marriage - 29 Nov 1396 - Anjou, Isère, Rhône-Alpes, France Death - 13 Nov 1440 - Howden, Yorkshire, England Burial - - Lincolnshire, England  = Link to Google Earth

  
  

• Old World

  _Joan de Beaufort Joan Beaufort (c. 1379 – 13 Nov 1440) was the youngest of the four legitimised children and only daughter of John of Gaunt, 1st Duke of Lancaster (third surviving son of King Edward III), by his mistress, later wife, Katherine Swynford. She married Ralph de Neville, 1st Earl of Westmorland and in her widowhood became a powerful landowner in the…

  
  

• Sources

  [S54] Ancestry Family Trees, (Name: Online publication - Provo, UT : Ancestry.com. Original data: Family Tree files submitted by Ancestry members.;), Database online. Record for Ralph De Neville http://search.ancestry.com/cgi-bin/sse.dll?db=pubmembertrees&h=-1846091756&indiv=try [S384] Ancestry.com, Colonial Families of the USA, 1607-1775, (Name: Ancestry.com Operations, Inc.; Location: Lehi, UT ; Date: 2016;). Colonial Families of the USA, 1607-1775 [S202] Ancestry.com, Web: Netherlands, GenealogieOnline Trees Index, 1000-Current, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT ; Date: 2014;). [S6040] FindAGrave Old World, Joan Beaufort Neville 1375-1440. Lady Joan Plantagenet de Beaufort), Countess of Westmorland (1397), Lady Companion, Order of the Garter (1399); House of Plantagenet Lady Joan Plantagenet de Beaufort was born circa 1375 at Chateau de Beaufort, Montmorency-Beaufort, Champagne, France. She was the daughter of John of Gaunt, Duke of Lancaster and Katherine Roet. Her birth was legitimized by Parliament 29 Sep 1397, after the marriage of her parents. As the granddaughter of King Edward III, she is royalty rather than nobility, and her children made excellent marriages into the families of dukes and earls. Her progeny through the centuries is remarkable. Lady Joan de Beaufort first married Sir Robert de Ferrers, 3rd Lord Ferrers of Wem. They had two daughters, Elizabeth and Mary Ferrers. See below. After the death of Sir Robert, Lady Joan married Ralph Neville, 1st Earl of Westmorland. Together they had 14 children, 5 sons and 9 daughters at Raby Castle, Durham, England. Their children and grandchildren participated in the England and Scotland courts for nearly 100 years, carrying forward the line of the House of Plantagenet, the House of York, and the House of Lancaster. https://www.findagrave.com/memorial/16146333/joan-neville