About John I Sanudo
John I Sanudo was an Italian military personnel.
John I Sanudo (, also known by the diminutive Janulli; died 1362) was the sixth Duke of the Archipelago from 1341 to his death.
He was the brother and successor of Nicholas I and son of William I. His other brother was Marco Sanudo, Lord of Milos.
In 1344, the Aydinid Turks occupied part of Naxos, enslaving 6,000 locals.
John was a supporter of Venice in her war against Genoa, but he was captured and taken captive with his family to Genoa in 1351, where he remained despite Papal entreaties for his release. He was let go in by the terms of the peace treaty of 1355.
With his wife Maria he had one daughter, Florence, who succeeded him.
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Important facts
Related people
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Frequently asked questions
Who was John I Sanudo?
Duke of the Archipelago
When did John I Sanudo die?
John I Sanudo died in 1362.
What was John I Sanudo's occupation?
John I Sanudo was a military personnel.
What nationality was John I Sanudo?
John I Sanudo was Italian.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). John I Sanudo. https://biography.guide/john-i-sanudo/
MLA: "John I Sanudo." Biography.guide, https://biography.guide/john-i-sanudo/.
Chicago: "John I Sanudo." Biography.guide. https://biography.guide/john-i-sanudo/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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