Slaves were bound to their master's lands, until one's debt was paid to his master. Barring being a captive, being punished for committing a crime, or failing to pay an outstanding gambling debt, slavery was an institution one could enter into freely.
because his empire spanned across an ocean it made it hard for his subjects to be directly under him, and hard to maintain a tight grasp on his empire, making the enforcement of catholicism harder as well
