6 min
Separation of Church and State
Western Europe was shaken to the heart in the eleventh century by the investiture conflict. It saw kings humbled by popes, popes driven out by kings, wars between armies, dissensions within the church, and, ultimately, a new Europe.
A theological dispute pulsed at the center of the conflict. To understand it, we have to step back even further in time to the development of feudalism. The Roman Empire’s disintegration in the West, from the fifth century on, gave birth to a new social landscape, where ownership of land rather than money or political office was all-important. More-powerful figures made grants of land to lesser figures, who in turn swore personal loyalty to their superiors. The Latin for “grant” is feudum — hence “feudalism.” At the top of this chain of “land and loyalty” were the king and his chief nobles. At the bottom were the peasants. In between were layers of lesser figures: minor nobles, local knights.
This social structure of “land and loyalty” had a transforming impact on the church. A local landowner would build the local church or monastery on his own land at his own expense. It was only by grant from the local lord that the church’s land and landed property (for example, the manse) belonged to the clergy. Perhaps naturally, the lord saw it as his right to choose who would manage the local ecclesiastical property as priest, bishop, or abbot.
Feudalism therefore killed the ancient tradition of clergy being elected by church members and bishops being elected by clergy and people together. When the supreme feudal lord, the king — who was, of course, a layman — appointed or “invested” the man of his choosing as a bishop or abbot, this was called “lay investiture.” It took place through a ceremony in which the king bestowed on the bishop or abbot his ring and staff, the symbols of spiritual office. The bishop or abbot then swore loyalty to the king as his lord.
Not everyone, however, was happy with a feudalized church. In the mideleventh century, the papacy began to recover its integrity and power after a long, dismal period of corruption and impotence. A series of reforming popes, backed by a strong party in the church, made the papal court once again a body to be honored and feared. The dominant genius of this reform was a Tuscan of lowly birth named Hildebrand. After administering with brilliance various positions of trust under the reforming popes, he was himself elected pope by popular acclaim in 1073. He took the name Gregory VII . The reform movement he masterminded is known either as the Hildebrandine or Gregorian reform.
Hildebrand saw life in military terms — as a raging conflict between light and darkness. The chief agents of darkness were the secular rulers — the counts, dukes, princes, and kings. They were nothing but glorified thugs, who oppressed the poor and filled the earth with injustice. To bring about justice, the agents of light — the church, headed by the papacy
