There have been 16 popes named Gregory so you need to be specific.
No. Pope Gregory VII in 1079AD decreed the practice.
No, Pope Gregory the Great .was also known as Pope Gregory I.
The Gregorian calender is named after Pope Gregory XIII who made its use official in a papal decree in 1582.
In 1073, Pope Gregory VII issued a decree known as the Dictatus Papae, which outlined the powers and authority of the papacy. This decree asserted that the pope had the exclusive right to appoint bishops, convene church councils, and define church doctrine. It emphasized the supremacy of the pope over secular rulers, thereby reinforcing the idea of papal authority in both ecclesiastical and political matters. This was a significant step in the Investiture Controversy, a conflict between the church and secular leaders over the appointment of church officials.
That would be Pope Saint Gregory I.
Pope St. Gregory VII was pope in 1075.Pope St. Gregory VII was pope in 1075.
Yes, Pope Gregory I was the 64th pope.
Pope Gregory I
Yes, he was also known as Pope Gregory the Great.
Pope Gregory VII was a Catholic pope. Of course he was a Christian.
Pope Gregory VII was elected pope on April 23, 1073.
To which Pope Gregory do you refer? There have been 16.