About John IV of Gaeta
Lived 901 – 1012 (aged 110–111). John IV of Gaeta was a Byzantine aristocrat.
John IV (died April or August 1012) was the eldest son of John III of Gaeta and Emilia. He was appointed co-duke in 991 while still young (he was a minor even in 994). John succeeded his father in 1008 or 1009 and ruled for a brief four years.
John married Sichelgaita, daughter of John IV of Naples and sister of Sergius IV. He left an infant son, John V, under the regency of his mother, Emilia. His brother Leo fought for the regency and his cousin Leo tried to usurp the throne from the young John V.
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Important facts
Related people
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Contemporaries
People whose lives overlapped John IV of Gaeta's
Frequently asked questions
Who was John IV of Gaeta?
Italian Duke
When was John IV of Gaeta born?
John IV of Gaeta was born in 901.
When did John IV of Gaeta die?
John IV of Gaeta died in 1012.
What was John IV of Gaeta's occupation?
John IV of Gaeta was an aristocrat.
What nationality was John IV of Gaeta?
John IV of Gaeta was Byzantine.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). John IV of Gaeta. https://biography.guide/john-iv-of-gaeta/
MLA: "John IV of Gaeta." Biography.guide, https://biography.guide/john-iv-of-gaeta/.
Chicago: "John IV of Gaeta." Biography.guide. https://biography.guide/john-iv-of-gaeta/.
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