About John of Constantinople
John of Constantinople was a Byzantine monk.
John of Constantinople (died 839), also known as John the Confessor, was an abbot of the Cathares Monastery, in Constantinople. He clashed with the Byzantine Emperor Leo the Armenian, who was instituting a policy of iconoclasm. John survived torture for his iconodulism. He is considered a saint by the Eastern Orthodox Church and the Roman Catholic Church, and is celebrated by them on 27 April and 18 April respectively.
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Important facts
Related people
Same field, nearest in time
Frequently asked questions
Who was John of Constantinople?
Byzantine saint
When did John of Constantinople die?
John of Constantinople died in 832.
What was John of Constantinople's occupation?
John of Constantinople was a monk.
What nationality was John of Constantinople?
John of Constantinople was Byzantine.
Sources & further reading
· Wikipedia: John of Constantinople
· DBpedia: John of Constantinople
Cite this page
APA: Biography.guide. (2026). John of Constantinople. https://biography.guide/john-of-constantinople/
MLA: "John of Constantinople." Biography.guide, https://biography.guide/john-of-constantinople/.
Chicago: "John of Constantinople." Biography.guide. https://biography.guide/john-of-constantinople/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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