St. Gregory VII, born Hildebrand of Sovana, was Pope from 1073 until his death in 1085. He is known for his reforms in the Church, including the enforcement of clerical celibacy and the assertion of papal supremacy over secular rulers. His efforts played a major role in the development of the Church's power in Europe.
Born around 1020 in Sovana, Italy, St. Gregory VII was initially known as Hildebrand. He became a Benedictine monk and later served as an advisor to several popes. His rise within the Church was due to his dedication to reforming and strengthening the authority of the papacy. He became pope in 1073 and was determined to assert papal supremacy over secular rulers, especially concerning the practice of investiture (the appointment of bishops by secular rulers).
His papacy was marked by intense conflict with the Holy Roman Emperor Henry IV, particularly over the issue of lay investiture. Gregory VII believed that only the pope had the authority to appoint bishops, while Emperor Henry IV claimed the right to do so. This conflict led to the famous "Walk to Canossa" in 1077, when Henry IV sought forgiveness from Gregory after being excommunicated.
St. Gregory VII also focused on enforcing clerical celibacy and eliminating simony (the selling of Church offices). His reforms significantly changed the relationship between the Church and secular rulers, and his actions strengthened the role of the pope in both religious and political matters.
St. Gregory VII passed away in 1085, and his feast day is celebrated on May 25. He was canonized by Pope Paul V in 1606. His papacy had a lasting impact on the structure and influence of the Roman Catholic Church.