Family: John de Plessis, Earl of Warwick / Margery de Newburgh, Countess of Warwick (F6726)

• Male John de Plessis, Earl of Warwick

  
  

  Birth	Abt 1209
  Death	25 Feb 1262	Oxfordshire, England
  Burial		Missenden Abbey, Buckinghamshire
  Marriage	Bef 14 Sep 1243
  Other Spouse	Christian de Sanford | F6727
  Marriage
  Father	William I of Kidlington de Plessis | F14022 Group Sheet
  Mother

  
  

  Female Margery de Newburgh, Countess of Warwick

  
  

  Birth
  Death	Yes, date unknown
  Burial
  Other Spouse	John Marshal, Marshall of Ireland | F6724
  Marriage	Bef 22 Aug 1242
  Father	Henry de Newburgh, 5th Earl of Warwick | F3795 Group Sheet
  Mother	Margery de Oilly | F3795 Group Sheet