William III De Ferriers
William III was born in 1193.^1 1 

 Sibilla Marshall
Sibilla was born in 1198.¹   She died at the age of 40 in 1238.¹ 

 Isabel De Ferriers
Isabel was born in 1224.²   She died at the age of 36 in 1260.² 

 Sybil De Ferriers
Sybil was born in 1226.² 

 Lady Maud (Matilda) De Ferriers
Maud, known as Matilda, was born in 1228 in Derbyshire,England.¹   She died at the age of 69 on March 12th, 1297.¹ 

 Eleanor De Ferriers
Eleanor was born in 1230.¹