Agnes of Chester was born circa 1174 to Hugh de Kevelioc, 3rd Earl of Chester (1147-1181) and Bertrade de Montfort (c1155-1227) and died 2 November 1247 of unspecified causes. She married William de Ferrers, 4th Earl of Derby (c1168-c1247) . William I of England (1027-1087), Alfred the Great (849-899)/s, Charlemagne (747-814)/s, Hugh Capet (c940-996)/s, Rollo of Normandy (860-932)/s.
|Offspring of William Ferrers and Agnes de Kevelioch (c1174-1247)|
|William de Ferrers, 5th Earl of Derby (c1193-1254)||1193||28 March 1254||Sibyl Marshall (1209-bef1238) Sibyl Marshall (1209-bef1238) Margaret de Quincy (c1218-bef1285)|
|Bertha de Ferrers (1218-1267)||1218 Thetford, Norfolk, England, United Kingdom||10 February 1267 England, United Kingdom||Thomas de Furnival (1200-1238) Thomas de Furnival (1200-1238) Ralph Bigod (c1215-1260)|
|Sibyl de Ferrers (1216-?)|
|Thomas de Ferrers|
|Hugh de Ferrers|