Fernando was the son of unknown parents. The date and place of his birth have not been found.
His wife was Urraca Díaz de Haro. They were married, but the date and place have not been found. They had no known children.
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | señor de Cigales y Cuéllar |
Note 1
hijo de Rodrigo Fernández de Castro, vizconde de Cabrera y señor de Cigales, y de su esposa Leonor González de Lara