About John Carnac
Lived 1716 – 1800 (aged 83–84). John Carnac was a politician.
Brigadier-General John Carnac ( – 29 November 1800) was a British officer who served three times as Commander-in-Chief of India.
Early life John Carnac was baptised in London on 12 April 1721. He was the son of Captain Peter Carnac (1665–1756), and Andrienne, née Lelonte (died ). Later in his life, Carnac still corresponded with his family and their friends in French.
Military career
John Carnac voyaged to India as a lieutenant in the 39th Regiment in 1754 and served at Madras as secretary and aide-de-camp to the colonel of the regiment, John Adlercron.
By 1773 Carnac was short of money and he returned to India as a member of the Council at Bombay. He was dismissed from the East India Company for his involvement in the Convention of Wadgaon in 1779 and died at Mangalore in November 1800. who had been an MP and Mayor of Derby. A 1775–76 portrait of Mrs. Carnac by Sir Joshua Reynolds hangs in the Wallace Collection in London; with a proof impression at the British Museum.
John Carnac's last will and testament made his brother-in-law James Rivett his heir, provided that he assumed the additional name of Carnac, which he did in 1801. Two of James's sons became famous: Sir James Rivett-Carnac, 1st Bt, became a Governor of Bombay Presidency, while Admiral John Rivett-Carnac became an early explorer of Australia, where Carnac Island was named in his honor by Captain James Stirling when Rivett-Carnac was first lieutenant on on the Swan River expedition of 1827.
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Important facts
People in John Carnac's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped John Carnac's
Frequently asked questions
Who was John Carnac?
British East India Company general (1716–1800)
When was John Carnac born?
John Carnac was born in 1716.
When did John Carnac die?
John Carnac died on 29 November 1800 in Mangaluru.
What was John Carnac's occupation?
John Carnac was a politician.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). John Carnac. https://biography.guide/john-carnac/
MLA: "John Carnac." Biography.guide, https://biography.guide/john-carnac/.
Chicago: "John Carnac." Biography.guide. https://biography.guide/john-carnac/.
Data last updated: 2026-09-23 · Spot an error? Report a correction.
Portrait: Wikimedia Commons · author & licence
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