William De Ferrers
William was born about 1200 in Of, Derbyshire, England.¹   He died in ,Evington, Leicestershire, England.  He was buried on March 31st, 1254 in Merevale Abbey, Merevale, Warwickshire, England.^1 1 

 Sibyl Marshall
Sibyl was born in 1209 in Of Pembroke, Pembrokeshire, Wales and her baptism took place in 1209 in ,St David's, Pembrokeshire, Wales.¹   She died at the age of 36 on April 27th, 1245.¹ 

 Maud Matilda De Ferrers
Maud Matilda was born about 1228 in Of, Derbyshire, England.^1 1 

 Joan De Ferrers
Joan was born about 1232 in Of, Derbyshire, England.¹   She died about October 1267.¹ 

 Agnes De Ferrers
Agnes was born about 1246.¹   She died after May 9th, 1281.¹