William de FERRERS, (EARL OF DERBY)
He married Margaret de Quincy 1238 at Derby, Derbyshire, England . Margaret de Quincy was born at of Winchester, Hamptonshire, England Abt 1218 daughter of Roger de Quincy, (Earl of Winchester) and Helen de Galloway, (Countess of Winchester) .
They were the parents of 5
children:
Robert Ferrers, (Earl of Derby)
born 1239.
William de Ferrers, (Knight)
born Abt 1240.
Agnes de Ferrers
born 1244.
Elizabeth Ferrers
born Abt 1246.
Joan de Ferrers, (Baroness Berkeley)
born Abt 1248.
William de Ferrers, (Earl of Derby) died 24 Mar 1254 at At Evington .
Margaret de Quincy died Bef 12 Mar 1284 .