What Was The Investiture Controversy Related To The Gregorian Reform? - Europe Through the Ages

Revolution in the 11th Century: Church Reforms & the Clash with Secular Powers Explained

How Did Reforms Like the Gregorian Reform Change Church Hierarchy? | Medieval Europe Uncovered News

What Was Wrong With The Julian Calendar Before The Gregorian Reform In Rome? - All About Rome

Is Medieval Christianity Connected to the Gregorian Reform? | Medieval Europe Uncovered News

What Impact Did the Gregorian Reform Have on Church Hierarchy? | Medieval Europe Uncovered News

THE GREGORIAN REFORM – The medieval Church revolution and the dream of a papal theocracy

The Rise of the Inquisition | Corruption, Cathars & Crusades (Ep. 3)

Boring Story for Sleep : 10 Days Wiped from Time: The Gregorian Calendar Reform Explained

From Ius Antiquum to Ius Novum: How Gratian Revolutionized Canon Law

Why October 1582 Skipped 10 Days? | The Calendar Conspiracy| What Happened to October 5–14, 1582?

Pope St. Gregory VII (25 May): The Pope Who Reformed a Corrupt Church

Church in Crisis (Part 7): First Lateran Council (1123 AD) w/ Dr. Alan Fimister

Why Do We Have a 12-Month Calendar?

Church in Crisis (Part 8): 2nd, 3rd, & 4th Lateran Councils w/ Dr. Alan Fimister

Who Had the Power to Appoint Church Officials Within the Church Hierarchy?

When Did the Medieval Church Lose Its Political Power? | Medieval Europe Uncovered News

What Was the Relationship Between the Church and European Monarchs in Medieval Times?

POV: You're in the Middle Ages and the pope is...