On This Day

Pope Leo III crowns Charles the Great (Charlemagne) Holy Roman Emperor

Pope Leo III (Latin: Leo III; died 12 June 816) was bishop of Rome and ruler of the Papal States from 26 December 795 to his death on 12 June 816.

Pope Leo III (Latin: Leo III; died 12 June 816) was bishop of Rome and ruler of the Papal States from 26 December 795 to his death on 12 June 816. Protected by Charlemagne from the supporters of his predecessor, Adrian I, Leo subsequently strengthened Charlemagne's position by crowning him emperor. The coronation was not approved by most people in Constantinople, although the Byzantines, occupied with their own defenses, were in no position to offer much opposition.

Historical Significance

Pope Leo III (Latin: Leo III; died 12 June 816) was bishop of Rome and ruler of the Papal States from 26 December 795 to his death on 12 June 816.

Key People

Charlemagne

Carolingian emperor from 800 to 814

Carolingian emperor from 800 to 814

Events Before

  1. Vikings in longships from modern-day Norway plunder St. Cuthbert's monastery on Lindisfarne Island off the northeast coa

    Vikings in longships from modern-day Norway plunder St. Cuthbert's monastery on Lindisfarne Island off the northeast coast of England, capturing and killing monks

  2. Japanese Emperor Kanmu relocates the capital from Nara to Heian-kyo (now Kyoto)

    Heian-kyō (平安京; lit. 'peaceful/tranquil capital') was one of several former names for the city now known as Kyoto. It was the de jure capital of Japan for over one thousand years, from 794 to 1869.

  3. Japanese emperor Kammu deallocates residence of Nara to Kioto

    Japanese emperor Kammu deallocates residence of Nara to Kioto

  4. Leo III is elected to serve as Pope on the day his predecessor was buried and is consecrated the following day

    Leo III is elected to serve as Pope on the day his predecessor was buried and is consecrated the following day

  5. Leo III begins his reign as Pope after his election the previous day

    Leo III begins his reign as Pope after his election the previous day

Events After

  1. Empress Irene of Byzantium is driven out

    Empress Irene of Byzantium is driven out

  2. Ludger becomes the first Bishop of Münster in the Holy Roman Empire

    Ludger becomes the first Bishop of Münster in the Holy Roman Empire

More from the 800s

Frequently Asked Questions

What happened on December 25, 800?
Pope Leo III (Latin: Leo III; died 12 June 816) was bishop of Rome and ruler of the Papal States from 26 December 795 to his death on 12 June 816. Protected by Charlemagne from the supporters of his predecessor, Adrian I, Leo subsequently strengthened Charlemagne's position by crowning him emperor. The coronation was not approved by most people in Constantinople, although the Byzantines, occupied with their own defenses, were in no position to offer much opposition.
Why is Pope Leo III crowns Charles the Great (Charlemagne) Holy Roman Emperor significant?
Pope Leo III (Latin: Leo III; died 12 June 816) was bishop of Rome and ruler of the Papal States from 26 December 795 to his death on 12 June 816.
Who was involved in Pope Leo III crowns Charles the Great (Charlemagne) Holy Roman Emperor?
Key figures include Charlemagne (Carolingian emperor from 800 to 814).

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