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John Thomas Barnewall, 15th Baron Trimlestown

1773 – 1839

Irish peer, 1773-1839

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About John Thomas Barnewall, 15th Baron Trimlestown

Lived 1773 – 1839 (aged 65–66).

John Thomas Barnewall, 15th Baron Trimlestown (30 January 1773 – 7 October 1839) was an Irish landowner associated with the Roebuck Estate in County Dublin, Ireland. He succeeded to the title on the death of his father Nicholas on 16 April 1813. His mother was his father's first wife Martha Henrietta d'Aguin, daughter of Joseph d'Aguin. He married Maria Kirwan, daughter of Richard Kirwan of County Galway and Anne Blake, and had two children. He died in Naples.

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Important facts

Born
1773
Birth century
18th century
Died
1839
Also known as
John Thomas Barnewal

People in John Thomas Barnewall, 15th Baron Trimlestown's life

Named in this biography and alive at the same time

Portrait of John Thomas
John Thomas
1696 – 1781
Anglican priest
 Portrait of Richard Kirwan
Richard Kirwan
1733 – 1812
Chemist

Contemporaries

People whose lives overlapped John Thomas Barnewall, 15th Baron Trimlestown's

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Edward Waring
1736 – 1798
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Joseph-Louis Lagrange
1736 – 1813
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Antoine Lavoisier
1743 – 1794
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Joseph Banks
1743 – 1820
Botanist
 Portrait of Pierre Méchain
Pierre Méchain
1744 – 1804
Astronomer
 Portrait of Antoine Laurent de Jussieu
Antoine Laurent de Jussieu
1748 – 1836
Botanist

Frequently asked questions

Who was John Thomas Barnewall, 15th Baron Trimlestown?

Irish peer, 1773-1839

When was John Thomas Barnewall, 15th Baron Trimlestown born?

John Thomas Barnewall, 15th Baron Trimlestown was born in 1773.

When did John Thomas Barnewall, 15th Baron Trimlestown die?

John Thomas Barnewall, 15th Baron Trimlestown died in 1839.

Sources & further reading

· Wikipedia: John Thomas Barnewall, 15th Baron Trimlestown

· Wikidata: Q26760970

· DBpedia: John Thomas Barnewall, 15th Baron Trimlestown

Cite this page

APA: Biography.guide. (2026). John Thomas Barnewall, 15th Baron Trimlestown. https://biography.guide/john-thomas-barnewall-15th-baron-trimlestown/

MLA: "John Thomas Barnewall, 15th Baron Trimlestown." Biography.guide, https://biography.guide/john-thomas-barnewall-15th-baron-trimlestown/.

Chicago: "John Thomas Barnewall, 15th Baron Trimlestown." Biography.guide. https://biography.guide/john-thomas-barnewall-15th-baron-trimlestown/.

Data last updated: 2026-09-20 · Spot an error? Report a correction.

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