| b 1240, Of, Groby, Leicestershire, England | Robert De Ferrers, [Earl of Derby] | > | d 20 Dec 1287, | William De Ferrieres, [Earl of Derby] | Margaret Peverel, [Countess] | > |
| William De Ferrers, [Earl of Derby] | b 1140 | William De Braose, [Sheriff] | > | |
| | b 1162 | Sybil De Braose | Bertha De Gloucester | > | |
| William Ferrers, [Earl of Derby] | d 22 Sep 1247 | b 1157 | Ranulph De Meschines, Earl of Chester | > |
| |b 1200 | | | Hugh 'Kevelioc', Earl Chester | Matilda Maud Fitzrobert | > |
| |d 24 Mar 1254 | Agnes De Meschines | b 1147 | Simon De Montfort | > |
| | | b 1174 | Bertrade De Montfort_(Evreux | Maud | |
| William De Ferrers, [Sir Knight] | d 02 Nov 1247 | b 1155 | Robert De Quincy | > |
| | | Saher IV De Quincy, Earl | Orabella | | | Roger De Quincy, Earl | b 1155 | Robert III De Beaumont, [Earl Leicester] | > |
| | | |b 1204 | Margaret De Beaumont | Petronilla Grentmesnil | > |
| Margaret De Quincy | d 25 Apr 1264 | b 1154 | ||
| b 1222 | | | |||
| d 12 Mar 1284 | Helen De De Galloway | |||
| b 1208 | ||||
| d 21 Nov 1245 | ||||