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) .
Children
| Name | Birth | Death | Joined with |
| William de Ferrers, 5th Earl of Derby (c1193-1254) | 1193 | 28 March 1254 | 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) Ralph Bigod (c1215-1260) |
| Sibyl de Ferrers (1216-?) | |||
| Thomas de Ferrers | |||
| Hugh de Ferrers | |||
Footnotes (including sources)
| ‡ General |
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