Castilians

A former kingdom, Castile (Spanish: Castilla; usually pronounced Cast-EEL in English), gradually merged with its neighbors to become the Kingdom of Spain. in modern-day Spain, it comprises the regions of Castilla y León in the north-west, and Castilla-La Mancha in the center of the country. Modern Spanish monarchs are numbered according to the system of Castile.

Castile's name means land or region of castles, in reference to the castles built in the area to consolidate the Christian re-conquest from the Moors.