Family: William de Ferrers, Earl of Derby / Sibyl Marshall (F2734)
m. Abt 1223William de Ferrers (1162-1246) 
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Agnes de Meschines (1174-1247) |
| Thomas de Ferrers (1202- ) |
| Hugh de Ferrers (1204-1257) |
| Robert de Ferrers (1206-1279) |
| Sybil de Ferrers (1216- ) |
Berta de Ferrers (1256- )  |
| Hugh de Ferrers (1304- ) |
| William Marshall, Earl of Pembroke (1143-1219)
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| Margaret Marshall (1176- ) |
| Sibyl Marshall (1178- ) |
| William Marshall (1186-1231) |
| Eve Marshall (1190-1245) |
| William Marshall (1190-1231) |
| Richard Marshall (1190-1239) |
| Maud Marshall (1192-1248) |
| Gilbert Marshall (1194- ) |
| Richard Marshal (1194-1238) |
| Isabel Marshal (1196-1240) |
| Gilbert Marshal (1198-1242) |
| Walter Marshall (1198-1245) |
| Joan Marshal (1202- ) |
| Anselm Marshall (1202-1245) |
| Isabel Marshall (1203-1240) |
| Isabel Marshall (1203-1240) |
| Joanna Joan Marshall (1204-1247) |
| Anselm Marshal (1205-1245) |
| Eve Marshall (1206-1245) |
| William de Ferrers, Earl of Derby (1200-1254)
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| Sibyl Marshall (1204-1245)
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| Agnes de Ferrers (1224-1290) |
| Isabella de Ferrers (1226-1260) |
| Maud Matilda de Ferrers (1228-1299) |
| Sibyl de Ferrers (1230- ) |
| Joan de Ferrers (1232-1267) |
| Agatha de Ferrers (1234-1306) |
| Eleanor de Ferrers (1236-1274) |
| John de Ferrers (1238- ) |