 
| Type | Valeur | 
|---|---|
| Titre | Robert de Ferrers, son of Henry, in the Dictionary of National Biography, pg. 386 [See document in the Memories section] | 
| Personnes | 
|---|
|  HENRY de Ferrières Sire de Ferrieres and Chambrais - Domesday | 
|  ROBERT Ferrers 1st Earl of Derby | 
| Dictionary of National Biography, pg. 386 | 
| Robert de Ferrers, son of Henry, in the Dictionary of National Biography, pg. 386 [See document in the Memories section] |