Family: Sir John Beaufort, KG, Duke of Clarence / Margaret de Holand (F7860)  ^[1] 

• Male Sir John Beaufort, KG, Duke of Clarence

  
  

  Birth	Abt 1370
  Death	16 Mar 1409/10
  Burial
  Marriage	Before 28 Sep 1397  [1]
  Father	Sir John of Gaunt, KG, Duke of Lancaster | F6037 Group Sheet
  Mother	Katherine Roet | F6037 Group Sheet

  
  

  Female Margaret de Holand

  
  

  Birth
  Death	30 Dec 1429
  Burial
  Other Spouse	Thomas Plantagenet, Duke of Clarence | F7861
  Marriage
  Father	Sir Thomas de Holand of Woodstock, KG, Earl of Kent | F6043 Group Sheet
  Mother	Alice FitzAlan | F6043 Group Sheet

  
  

• Notes

  Married: Issue: 1. Joan Beaufort (____-1445) 2. Edmund Beaufort, Marquis of Dorset, Duke of Somerset (c1406-1455) [1]

  
  

• Sources

  [S59] Weis, Frederick Lewis. Ancestral Roots of Sixty Colonists Who Came to New England Between 1623 and 1650 Fifth Editionif, (Baltimore, Maryland: Genealogical Publishing Co., 1982).