Robert (Earl) de FERRERS
Robert (Earl) de was born about 1062 in Darley, Derbyshire, England.  He died in 1139.

 Hawise de VITRE
Hawise de was born about 1069 in Derbyshie, England.  Hawise de is no longer alive.

 Robert II (Earl) de FERRERS
Robert II (Earl) de was born about 1062 in Durley, Derbyshire, England.  He died in 1139.