Three evils plagued the Church then: simony–the buying and selling of sacred offices and things; the unlawful marriage of the clergy; and lay investiture—kings and nobles controlling the appointment of Church officials. To all of these Hildebrand directed his reformer’s attention, first as counselor to the popes and later as pope himself.

Gregory’s papal letters stress the role of the bishop of Rome as the vicar of Christ and the visible center of unity in the Church. He is well known for his long dispute with Holy Roman Emperor Henry IV over who should control the selection of bishops and abbots.

Gregory fiercely resisted any attack on the liberty of the Church. For this he suffered and finally died in exile. He said, “I have loved justice and hated iniquity; therefore, I die in exile.” Thirty years later the Church finally won its struggle against lay investiture. The liturgical feast of Saint Gregory VII is celebrated on May 25.

Reflection

The Gregorian Reform, a milestone in the history of Christ’s Church, was named after this man who tried to extricate the papacy and the whole Church from undue control by civil rulers. Against an unhealthy Church nationalism in some areas, Gregory reasserted the unity of the whole Church based on Christ, and expressed in the bishop of Rome, the successor of Saint Peter.

https://www.franciscanmedia.org/saint-of-the-day/saint-gregory-vii