+The [Kingdom of Castile](/wiki/castile) was a prominent medieval state on the [Iberian Peninsula](/wiki/iberian_peninsula). It emerged as a county and grew into a powerful kingdom, playing a central role in the [Reconquista](/wiki/reconquista) before uniting with the [Crown of Aragon](/wiki/aragon) to forge the future of Spain.
+## See also
+- [Crown of Castile](/wiki/crown_of_castile)
+- [Kingdom of Leon](/wiki/leon)
+- [Spain](/wiki/spain)
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