Gregorry Vll Important because during the time of Gregorry VII there were many changes in the church.
Explanation:
Pope Gregory VII became the pope of the church from April 1073 till he died in 1085. This eleventh century pope was important because he saw many changes in the church during the time when he was the pope.
He also worked at the post of the papal advisory for a series of popes before he him self got elected as the pope of the church. He gave papal office the importance.
