Family: Sir William de Ferrers, 3rd Earl of Derby / Sybil de Braose (F17590)

• Male Sir William de Ferrers, 3rd Earl of Derby

  
  

  Birth	1140	Tutbury, Staffordshire, England
  Death	21 Oct 1191	The Siege of Acre, Israel
  Burial
  Marriage
  Father	Sir Robert de Ferrers, II, Knight, 2nd Earl of Derby | F17598 Group Sheet
  Mother	Lady Margaret Peverel, Countess of Derby | F17598 Group Sheet

  
  

  Female Sybil de Braose

  
  

  Birth	Bef 1151	Bramber, Sussex, England
  Death	5 Feb 1227	Derbyshire, England
  Burial
  Other Spouse	Philip Butler | F18238
  Marriage
  Father	Sir William de Braose, Knight, 3rd Lord of Bramber | F17148 Group Sheet
  Mother	Lady Bertha of Hereford | F17148 Group Sheet

  
  

  Male Sir William de Ferrers, Knight, 4th Earl of Derby

  
  

  Birth	1168-1172	Tutbury, Staffordshire, England
  Death	20 Sep 1247	Duffield, Derbyshire, England
  Burial		Chartley Castle, Staffordshire, England
  Spouse	Agnes of Chester | F17143
  Marriage