Family: William de Montferrat, Marquis de Montferrat / Isabel de Clare (F5158)

• Male William de Montferrat, Marquis de Montferrat

  
  

  Birth
  Death	Yes, date unknown
  Burial
  Marriage	Jun 1257	Lyons
  Father
  Mother

  
  

  Female Isabel de Clare

  
  

  Birth	May 1240
  Death	Abt 1271
  Burial
  Father	Richard of Gloucester de Clare, 2nd Earl of Gloucester | F4614 Group Sheet
  Mother	Maude de Lacy | F4614 Group Sheet