King of León
Count of Castile
Events
Date of Birth: about 1016 - 1018.
Place of Birth: unknown.
The date is given by Vones. Viñayo González gives about 1018, as does Salazar y Acha (p. 105).
Date of Death: 27 December 1065.
Place of Death: León.
The date and place are given by Reilly (p. 13) and by Viñayo González.
Place of Burial: León, chuch of San Isidoro.
The place is given by Vones and by Reilly (p. 13).
Relationships
Father: Sancho Garcés III “el Mayor”, king of Navarre.
This relationship is given by Vones, by Viñayo González, by Salazar y Acha (p. 105), and by Reilly.
Mother: Muniadonna (Mayor) de Castilla.
This relationship is given by Vones, by Salazar y Acha (p. 105), and by Viñayo González.
Spouse: Sancha de León. Married in late 1032.
This relationship is given by Martínez Díez (p. 120), by Viñayo González, by Salazar y Acha (p. 105), by Reilly (p. 19), and by Vones.
Children:
(Complete source citations for facts about the children on this page are currently outside of the scope of this project. Most information below comes from Reilly and from Salazar y Acha.)
Urraca (born about 1035 - died 20 September 1101).
Sancho II (about 1037 - 7 October 1072), king of Castile, married Alberta.
Elvira (born about 1039 - died 10 November 1101).
Alfonso VI (about 1037 - 1 July 1109), king of León, king of Castile, married (1) Agnès d’Aquitaine; married (2) Constance de Bourgogne; married (3) Berta; married (4) Isabel; married (5) Zaïda; married (6) Beatrix.
García (about 1041 - 22 March 1090), king of Galicia.
References
Martínez Díez, Gonzalo. Sancho III el Mayor: rey de Pamplona, Rex Ibericus. (Madrid: 2007).
Reilly, Bernard F. The Kingdom of León-Castilla under King Alfonso VI, 1065-1109 (Princeton, N.J.: Princeton University Press, 1988).
Salazar y Acha, Jaime de. Las dinastías reales de España en la Edad Media. (Real Academia de la Historia, 2021).
Viñayo González, Antonio . "Fernando I" in Diccionario Biográfico electrónico (Real Academia de la Historia).
Vones, I. "Fernando I. 'el Magno'" in Lexikon des Mittelalters. Band 4 (Stuttgart: 1989).