Ferdinand I of León and Castile

King of Castile, then León and Castile (c.1015-1065) (r. 1035-1037 then 1037-1065) (1016–1066)

Parents

• Mayor of Castile
• Sancho III of Navarre

Children

• Elvira of Toro
• García II of Galicia
• Urraca of Zamora
• Sancho II of León and Castile
• Alfonso VI of León and Castile

Siblings

• Ramiro I of Aragon
• García Sánchez III of Pamplona
• Gonzalo of Sobrarbe and Ribagorza
• Jimena Sánchez
• Mayor Sánchez of Navarra

Partners

• Sancha of León