Kingdom of Castile

Kingdom of Castile
Reino de Castilla (Spanish)
Regnum Castellae (Latin)
1065–1833
Royal Standard
Coat of arms
  •   The Kingdom of Castile in 1210.
StatusIndependent kingdom (1065–1230)
Realm of the Crown of Castile (1230–1715)
Realm of Spain (1715–1833)
CapitalNo settled capital
Common languagesSpanish, Basque, Mozarabic, Andalusian Arabic
Religion
Roman Catholicism (state religion), Judaism and Islam
GovernmentFeudal monarchy (1065–1230)
King 
 1065–1072
Sancho II (first)
 1217–1230
Ferdinand III (last)
Historical eraMiddle Ages
 Established
1065
 Permanent union of Castile and León
23 September 1230
1833
Preceded by
Succeeded by
Kingdom of León
Spain
Today part ofSpain

The Kingdom of Castile (/kæˈstl/; Spanish: Reino de Castilla: Latin: Regnum Castellae) was a polity in the Iberian Peninsula during the Middle Ages. It traces its origins to the 9th-century County of Castile (Spanish: Condado de Castilla, Latin: Comitatus Castellae), as an eastern frontier lordship of the Kingdom of León. During the 10th century, the Castilian counts increased their autonomy, but it was not until 1065 that it was separated from the Kingdom of León and became a kingdom in its own right. Between 1072 and 1157, it was again united with León, and after 1230, the union became permanent.

Throughout that period, the Castilian kings made extensive conquests in southern Iberia at the expense of the Islamic principalities. The Kingdoms of Castile and of León, with their southern acquisitions, came to be known collectively as the Crown of Castile, a term that also came to encompass overseas expansion.