Family: Robert de Ferrers, 1st Earl of Derby / Countess of Derby Hawise de Vitré (F14728)
m. Abt 1087
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Male
Robert de Ferrers, 1st Earl of Derby
Birth 1062 Derbyshire, England, United Kingdom 
Death 1 Jun 1139 Staffordshire, England Burial Warwickshire, England, United Kingdom Marriage Abt 1087 Derby, Derbyshire, England Other Spouse Hawise de Ferrieres | F14727 Marriage Father Henry de Ferrers | F14748 Group Sheet Mother Berthe Roberts | F14748 Group Sheet
Female
Countess of Derby Hawise de Vitré
Birth Abt 1076 Vitré, Ille-et-Vilaine, Brittany, France Death 1 Jun 1139 Burton upon Trent St Mowden, Staffordshire, England, United Kingdom Burial Father Andrew I, Baron of Vitré | F14749 Group Sheet Mother Agnes de Mortaigne | F14749 Group Sheet
Male
William De Ferrers
Birth Abt 1088 Derby, Derbyshire, England Death Abt 1139 London, England Burial
Male
Sir Robert de Ferrers, 2nd Earl of Derby
Birth 27 May 1090 Derby, Derbyshire, England Death 29 Jun 1161 Tutbury, Staffordshire, England Burial Merevale, Leicestershire, England, United Kingdom Spouse Countess Of Derby Margaret Peverel | F14716 Marriage Spouse Margaret Peverel | F14717 Marriage Spouse Countess of Derby Margaret de Peverel | F14718 Marriage Abt 1135 Nottinghamshire, England
Female
Hawise de Ferrers
Birth Abt 1094 Derby, Derbyshire, England Death 7 Jan 1140 Derbyshire, England Burial
Female
Matilda de Ferrers
Birth Abt 1096 Derby, Derbyshire, England Death Abt 1161 Alton Barnes, Wiltshire, England Burial
Female
Agnes Ferrers
Birth Abt 1105 Greenham, Berkshire, England, United Kingdom Death 1130 Warwickshire, England Burial
Female
Isolde de Ferrers
Birth 1118 Derbyshire, England, United Kingdom Death Derby, Derbyshire, England, United Kingdom Burial