Family: 1st Earl of Somerset John Beaufort / Margaret Holland (F3345)
m. Bef 28 Sep 1397
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Male
1st Earl of Somerset John Beaufort
Birth 1373 Lincolnshire, England 
Death 16 Mar 1410 London, England Burial 1410 Canterbury, Kent, England Marriage Bef 28 Sep 1397 [1, 2] Upholland, Lancashire, England [1, 2] Father 1st Duke of Lancaster John of Gaunt Plantagenet | F739 Group Sheet Mother Katherine Swynford Roet | F739 Group Sheet
Female
Margaret Holland
Birth 1385 Upholland, Lancashire, England Death 30 Dec 1439 Bermondsey, Surrey, England Burial 1439 Canterbury, Kent, England Father 2nd Earl of Kent Thomas II Holland | F973 Group Sheet Mother Alice of Arundel Fitzalan | F973 Group Sheet
Female
+ Joan Beaufort
Birth 1404 Westminster, London, England Death 15 Jul 1445 Dunbar, East Lothian, Scotland Burial 1445 Perthshire, Scotland Spouse James I King of Scotland Stewart | F738 Marriage 2 Feb 1423 Southwark, Surrey, England Spouse James Stewart | F3068 Marriage Bef 21 Sep 1439
Male
1st Duke of Somerset John Beaufort
Birth 25 Mar 1404 Westminster, London, England Death 27 May 1444 Wimborne Minster, Dorset, England Burial 1444 Wimborne Minster, Dorset, England
Male
+ 1st Duke of Somerset Edmund Beaufort
Birth 1406 Westminster, London, England Death 22 May 1455 Saint Albans, Hertfordshire, England Burial 1455 Saint Albans, Hertfordshire, England Spouse Eleanor de Beauchamp | F3344 Marriage Abt 1435 England
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Sources - [S660] 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 - [S323] thePeerage.com, (Name: thePeerage.com;), Beaufort John #101971 http://thepeerage.com/p10198.htm#i101971.
- [S660] 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;).