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      Background to the Great Schism: the Roman Catholic Church

      Lesson details

      Learning outcome

      I can describe the reasons for religious reform in the Roman Catholic Church during the 11th century and the impact it had.

      Key learning points

      1. The Roman Catholic Church was led by the pope, who was based in Rome.
      2. There was a movement to reform the Church in the 11th century.
      3. Pope Leo IX was an important reforming pope.
      4. The reforms increased the authority and improved the perception of the Church.
      5. Pope Leo IX's reforms were continued by later popes.

      Keywords

      • Church - the Church is the organisation of the Christian religion

      • Pope - the pope is the head of the Roman Catholic Church

      • Clergy - the clergy are the group of religious officials who are authorised to conduct religious ceremonies

      • Reform - to reform something means to change something with a view to making it better

      Common misconception

      Catholic priests have never been allowed to get married.

      Catholic priests today are not allowed to get married, but in the past a great many were, even though it went against their rules. Some popes even had wives and children!

      Teacher tip

      For a starter, relate your school to the Church, with the Head as the pope, SLT as the cardinals, and so on. Ask students to consider how well the school would run if one or more of the different groups were removed in order to help them understand the importance of each group.

      Content guidance

      Depiction or discussion of sensitive content

      Supervision

      Adult supervision recommended

      Licence

      This content is © Oak National Academy Limited (2026), licensed on Open Government Licence version 3.0
      except where otherwise stated. See Oak's terms & conditions
      (Collection 2).

      Lesson video

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      In Western Europe the most important bishop was the pope, based in ---

      Jerusalem
      Ravenna
      Correct answer: Rome
      Constantinople

      Q2.
      The leaders of the eastern church were known as ...

      archbishops
      Correct answer: patriarchs
      popes
      priests

      Q3.
      In order to control the Western Church, the pope acted almost like a ...

      Correct Answer: king, King

      Q4.
      By the 7th century Jerusalem, Alexandria and had been conquered by Muslims.

      Correct Answer: Antioch, antioch

      Q5.
      Whereas the Eastern Church used in its services, the Western Church used Latin.

      Correct Answer: Greek, greek

      Q6.
      What was the 'Great Schism'?

      The formal re-joining of the two Churches.
      Correct answer: The formal splitting of two Churches.
      A violent war beween the two Churches.
      A violent conflict between the Eastern Church and Muslim invaders.

      6 Questions

      Q1.
      The organisation of the Roman Catholic Church is best described as a ...

      Correct Answer: hierarchy, Hierarchy

      Q2.
      Starting with the most important, place the members of the Catholic Church in order of their importance.

      1 - pope
      2 - cardinals
      3 - archbishops
      4 - bishops
      5 - priests

      Q3.
      Pope Leo IX wanted to the Roman Catholic Church.

      Correct Answer: reform, Reform

      Q4.
      What was simony?

      when priests could marry
      Correct answer: when people could buy a position in the Church
      when priests did not work as hard as they should
      the split between the Eastern and Western Churches

      Q5.
      With which group of people did Leo come into conflict with in southern Italy?

      the Vikings
      the Anglo-Saxons
      Correct answer: the Normans
      the Byzantines

      Q6.
      Some women who had been married to clergy lost in society.

      Correct Answer: power, status

      To help you plan your 7 history lesson on: Background to the Great Schism: the Roman Catholic Church, download all teaching resources for free and adapt to suit your pupils' needs...