About Mary O'Shiell
Lived 1715 – 1749 (aged 33–34). Mary O'Shiell was a French businessperson.
Mary O'Shiell (1715d. after 1745), was a French shipowner and slave trader. She is a known figure in the history of Nantes, alongside her sisters Agnés O'Shiell and Anne O'Shiell.
Life
She was the daughter of the Irish Jacobite Luke O'Shiell (1677-1745), who was born in Dublin but emigrated to Nantes after the Irish defeat, and Agnès Vanasse (1690-1724). The family manor of the O'Shiell, Manoir de la Placelière, became the gathering place of the large Irish colony in Nantes. She married Antoine Walsh, a leading slave trader in the slave trade of Nantes. In 1755, the O'Shiell family became ennobled.
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Important facts
People in Mary O'Shiell's life
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Related people
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Contemporaries
People whose lives overlapped Mary O'Shiell's
Frequently asked questions
Who was Mary O'Shiell?
French businessperson
When was Mary O'Shiell born?
Mary O'Shiell was born in 1715 in Nantes.
When did Mary O'Shiell die?
Mary O'Shiell died in 1749.
What was Mary O'Shiell's occupation?
Mary O'Shiell was a businessperson.
What nationality was Mary O'Shiell?
Mary O'Shiell was French.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Mary O'Shiell. https://biography.guide/mary-o-shiell/
MLA: "Mary O'Shiell." Biography.guide, https://biography.guide/mary-o-shiell/.
Chicago: "Mary O'Shiell." Biography.guide. https://biography.guide/mary-o-shiell/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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