Christopher O'Brien
Irish admiral
About Christopher O'Brien
Christopher O'Brien was a Russian and Irish.
Christopher O'Brien was an Irish naval officer of the eighteenth century.
He was of Gaelic origin, descended from the O'Brien dynasty. He served in the Royal Navy rising to the rank of captain. In 1737 he transferred to the Russian Navy where he was appointed to the rank of vice admiral. He was tasked with overseeing a series of reforms in the country's fleet. He was appointed commander of the Kronstadt Naval Base near St Petersburg. He left Russian service in 1742.
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Important facts
Frequently asked questions
Who was Christopher O'Brien?
Irish admiral
What nationality was Christopher O'Brien?
Christopher O'Brien was Russian and Irish.
Sources & further reading
· Wikipedia: Christopher O'Brien
· DBpedia: Christopher O'Brien (admiral)
Cite this page
APA: Biography.guide. (2026). Christopher O'Brien. https://biography.guide/christopher-o-brien/
MLA: "Christopher O'Brien." Biography.guide, https://biography.guide/christopher-o-brien/.
Chicago: "Christopher O'Brien." Biography.guide. https://biography.guide/christopher-o-brien/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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