| William III de Ferrers 5th E. of Derby, E. of Chester (~1193 - 1253) |
Humphrey de Bohun Knt., of Kimbolton, Huntingdonshire, etc. ( - 1265) |
| Margaret de Quincy of Groby (~1218 - 1280) |
Eleanor de Brewes (1230 - <1264) |
| Robert de Ferrers Knt., 6th Earl of Derby, etc. | Eleanor de Bohun |
| b. 1239, Of Derby, Lincolnshire, England d. bef 27 Apr 1279 bur. Priory of St. Thomas, Staffordshire, England occ. cen. im. . ud. |
b. d. 20 Feb 1313/1314, England bur. Walden Abbey, Essex, England occ. cen. im. . ud. |
| Spouses: 1, 2 |
| John de Ferrers Knt., 1st L. Ferrers of Chartley, etc. Eleanor Ferrers Thomas de Ferrers |