William Ferrers Of Derby V Earl
William Ferrers was born about 1200 in Derbyshire, , , England.  He died on March 28th, 1254 in Evington, , Leicester, England.  He was buried in March 1254 in Evington, , Leicester, England.

 Sibyl Marshal
Sibyl was born about 1198 in , , , England.  She died before 1238 in , , , England.  She was buried before 1238 in , , , England.

 Joan De Ferriers
Joan was born about 1218.

 Maud De Ferrers
Maud was born about 1228 in , , , England.  She died on March 12th, 1298.  She was buried in March 1298.

 Isabel De Ferrers
Isabel was born in , , , England.  She died on November 11th, 1260 in , , , England.  She was buried in November 1260 in , , , England.