Ferdinand and Isabella also believed that religious unity was necessary for political unity.
The rulers pursued a policy of strict conformity to Catholicism.
In 1492, they took the drastic step of expelling all professed Jews from Spain.
Muslims, too, after their final loss in 1492 to the armies of Ferdinand and Isabella, were “encouraged” to convert to Catholicism.
they had a choice of conversion or voluntary exile.
In 1502 Isabella issued a decree expelling all professed Muslims from her kingdom.
To a very large degree, Ferdinand and Isabella, the “most Catholic” monarchs, had achieved their goal of religious uniformity.