William III DE FERRERS
He married Sibyl Marshall Bef 14 May 1219 at Pembroke, Pembrokeshire, Wales . Sibyl Marshall was born at of Pembroke, Pembrokeshire, Wales 1209 daughter of William (the Proctor) Marshall and Isabel Fitzgilbert De Clare .
They were the parents of 8
children:
Isabel De Ferrers
born Abt 1218.
Eleanor De Ferrers
born Abt 1232.
Joan De Ferrers
born Abt 1227.
Sibyl De Ferrers
born Abt 1230.
Maud (Matilda) De Ferrers
born Abt 1230.
Agatha De Ferrers
born Abt 1236.
John De Ferrers
born Abt 1238.
Agnes De Ferrers
born Abt 1222.
William III De Ferrers died Bef 28 Mar 1254 at Evington, Leicestershire, England .
Sibyl Marshall died 27 Apr 1245 .


