List of the kings of Castile

The list of kings of Castile includes the rulers of the medieval Kingdom of Castile , from its establishment in the 10th century until it merged with the Kingdom of Aragon to form the Kingdom of Spain in the 16th century.

Castile was first a county in the Kingdom of Asturias and later in its successor kingdom , the Kingdom of León , from the 9th century . The Counts of Castile broke away from the supremacy of the king in the 10th century and became de facto independent. In 1028 the county came into the possession of King Sancho III. of Navarre . His son Ferdinand I the Great took over the Kingdom of León in 1037. When he died, the title of king remained with Castile, which now became a kingdom. From 1230 there was a permanent personal union between Castile and León.

With the marriage of Ferdinand II of Aragón to Isabella I of Castile in 1469, the Spanish unification process was further advanced. After Isabella's death in 1504, Ferdinand also took over the government in Castile in 1506, representing his daughter Johanna, who was considered insane, so that the two empires were now de facto united under one ruler for the first time. When Charles I (from 1519 as Charles V also Roman-German Emperor) inherited the Aragonese crown from his grandfather Ferdinand in 1516, the two empires were politically united. He became the first Spanish king and the independent kingdom of Castile ended.

List of the Counts of Castile

House of Castile

Name Castilian (dates of life)	Reign	relationship	Remarks
Rodrigo (*?; † 873)	860-873		Was appointed in 860 by King Ordoño I of Asturias as Count of the newly established Asturian East Mark ( marca oriental ), from which the county of Castile emerged.
Diego Rodríguez Porcelos (*?; † approx. 885)	873 - approx. 885	Son of the predecessor
Nuño Núñez I de Castrogeriz (*?; † approx. 901)	? - approx. 901
Gonzalo Téllez † before 929	around 903	Probably brother-in-law of his successor Gonzalo Fernández
Gonzalo Fernández de Burgos † 932	around 909-916	Son-in-law and nephew of his predecessor Nuño Núñez el de Castrojeriz
Nuño Nuñez el de Roa	914-915	Brother-in-law of the predecessor, son of Nuño Núñez el de Castrojeriz
Fernando Ansúrez	916–920 (?)	Son-in-law of Munio Fernández (see below)
Fernando Díaz † probably 923	917–923 (?)
Munio Fernández de Amaya † after 932	921–926 (?)	Brother of the predecessor	Around 925 the counts split off from the Kingdom of León
Fernando Ansúrez	926 - approx. 929		All that is known about him is that he married the widow of King García I of León .
Gutier Núñez	approx. 929-931
Fernán González (* 932; † 970)	931-944		First Count of Castile to be independent from León.
Ansur Fernández	944-945
Fernán González (* 932; † 970)	945-970		Again
García Fernández García Fernández el de las Manos Blancas (* 938; † 995)	970-995	Son of the predecessor
Sancho García Sancho García el de los Buenos Fueros (*?; † 1017)	995-1017	Son of the predecessor
García Sánchez García Sánchez el Infante (* 1009; † 1029)	1017-1029	Son of the predecessor
Munidona (Mayor)	1028-1035	Sister of the predecessor
Sancho III. of Navarre	1028-1035	Husband of Mayor