+The title "Catholic Monarchs" was a Papal honorific granted to [Ferdinand II](/wiki/Ferdinand_II) of Aragon and [Isabella I](/wiki/Isabella_I) of Castile. Their joint reign marked a pivotal era for Spain, leading to unification, the completion of the Reconquista, and the promotion of a unified Catholic identity.
+## See also
+- [Reconquista](/wiki/Reconquista)
+- [Monarchy](/wiki/Monarchy)
+- [Spain](/wiki/Spain)
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