Libertas ecclesiae
Libertas ecclesiae is the theory of freedom of religion of ecclesiastical authority of the Catholic Church from secular or the temporal power, that is, the freedom to accomplish its spiritual mission without interference from any secular power.
The 11th century
Libertas ecclesiae guided the Gregorian Reform in the 11th century.After the decentralization of the post-Carolingian period, this became the slogan of the Catholic Church in light of disapproval over lay warlords installing themselves as abbots and other high-profile churchmen. Unfit to perform theological functions, much less to defend the interests of the Catholic Church, these warlords viewed Catholic Church property as an extension of their own landholdings.
What resulted was the plunder of movable wealth and the parcelling out of land and office as the temporal powers saw fit. This low state of the Catholic Church prompted enthusiasm for 'freeing' it from the direct control of these milites; Gregory VII helped frame this goal through the specifics of his reform program, issuing a Papal Bull in 1077.
In addition to calling for spiritually pure figures at the helm of the Catholic Church, Pope Gregory VII addressed the practical problems of pluralism and poorly educated clerics.