Robert de Ferrers II, Second Earl of Derby 1
- Born: 27 May 1090, Tutbury Castle, Staffordshire, England
- Marriage (1): Margaret Peverell Countess of Derby in 1135 in Nottingham, Nottinghamshire, England
- Died: 29 Jun 1161, Tutbury Castle, Staffordshire, England at age 71
Robert married Margaret Peverell Countess of Derby, daughter of William "The Younger" Peverell II, Earl of Nottingham and Avice Montgomery Lady Lancaster, in 1135 in Nottingham, Nottinghamshire, England. (Margaret Peverell Countess of Derby was born on 1 Nov 1114 in Nottingham Castle, Nottinghamshire, England and died in 1154 in Tutbury Castle, Staffordshire, England.)
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