William deFerrers VII Earl of Derby
William deFerrers VII Earl of was born in 1196 in Groby, derbyshire, England.

 Sibyl Marshall
Sibyl was born in 1202 in Pembroke, Pembrokeshire, England.  She died at the age of 43 on April 27th, 1245.

 Isabel deFerrers
Isabel was born in 1224 in derbyshire, England.

 Eleanor deFerrers
Eleanor was born in 1236.  She died at the age of 38 in 1274.