Robert II de Ferrers, 2nd Earl of Derby was a younger, but eldest surviving son of Robert de Ferrers, 1st Earl of Derby and his wife Hawise. He succeeded his father as Earl of Derby in 1139. He was head of a family which controlled a large part of Derbyshire including an area later known as Duffield Frith.
- Citizenship
- Kingdom of England
- Died
- 1160