Religious persecution
In the previous kingdoms, positions in national institutions were filled by educated gentlemen. Philip II's administrators would normally come from either the University of Alcalá or the University of Salamanca. After Philip III the nobility once again asserted their right to govern the country. In order to show that there was a new order ruling there was a cleansing of the blood of Spain. Religious persecution led Philip to declare the expulsion of the Moriscos in 1609.