About John IV
Lived 750 – 849 (aged 98–99). John IV was a Byzantine presbyter.
John IV (Italian: Giovanni d'Acquarola or Giovanni Scriba; died 17 December 849), also known as the Peacemaker and John the Serene, was an Italian Catholic prelate who served as Bishop of Naples from 26 February 842 until his death.
He had the relics of Aspren translated to a chapel in the church of Santa Restituta in Naples. He also assisted Duke Andrew II in negotiating the Pactum Sicardi, an economic treaty, with Sicard, Prince of Benevento.
He was canonized after his death and is one of the patron saints of Naples. His feast day is 22 June.
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Important facts
Related people
Same field, nearest in time
Contemporaries
People whose lives overlapped John IV's
Frequently asked questions
Who was John IV?
bishop of Naples
When was John IV born?
John IV was born in 750.
When did John IV die?
John IV died in 849 in Naples.
What was John IV's occupation?
John IV was a presbyter.
What nationality was John IV?
John IV was Byzantine.
Sources & further reading
· DBpedia: John IV (bishop of Naples)
Cite this page
APA: Biography.guide. (2026). John IV. https://biography.guide/john-iv/
MLA: "John IV." Biography.guide, https://biography.guide/john-iv/.
Chicago: "John IV." Biography.guide. https://biography.guide/john-iv/.
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