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Edward Thornton

1817 – 1906

British diplomat

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About Edward Thornton

Lived 1817 – 1906 (aged 88). Edward Thornton was a British diplomat.

Sir Edward Thornton, 2nd Count of Cacilhas, (13 July 1817 – 26 January 1906) was a British diplomat who held posts in Latin America, the Ottoman Empire, the Russian Empire, and served for fourteen years as Minister to the United States.

Career He entered the diplomatic service as attaché to the mission at Turin in the Kingdom of Sardinia in 1842, filled the same position in Mexico in 1845, and was made Secretary of Legation in that capital in 1853. Thornton became 2nd Count of Cacilhas (also "Cassilhas"). Also in 1852, he was appointed Secretary of Legation at Buenos Aires, and chargé d'affaires to Uruguay in 1854.

After the war scare with Brazil was averted, another major geopolitical conflict embroiled South America – the Paraguayan War. Brazil, Argentina and Uruguay signed the Treaty of the Triple Alliance, which united all three nations against Paraguay. According to British historian Pelham H. Box, Argentine foreign minister Rufino de Elizalde informed Thornton that the Argentine government had no wish to annex Paraguay, but hoped that in the long term Paraguay might voluntarily join the Argentine Confederation (as was contemplated by Article 13 of the Argentine Constitution). He also informed Thornton that the Argentine Congress feared the provisions in the Treaty might prevent such an occurrence. After the war concluded, Thornton was withdrawn from his position, having concluded several agreements during his tenure.

Minister to the United States

Thornton's lengthiest assignment was as Minister to the United States, a position he held for fourteen years (1867–1881). This prospectus offered £800,000 in trust certificates bearing interest at 6% p.a.to provide a form of bridging finance to the British contractor responsible for the construction of the major new Harbour Works (Thomas Andrew Walker) - to cover the gap between Walker presenting certificates for work completed and the Argentine government paying for the work under the terms of the contract. Also in March 1887, the prospectus for The Hotchkiss Ordnance Company Limited cited him as the chairman of that company. And in July 1887 the prospectus for The North-Eastern of Uruguay Railway Company Limited cited him as chairman of that company.

In April 1888, the prospectus for The River Plate and General Investment Trust Company Limited cited Thornton as one of the five trustees of that company. In June 1888 the prospectus for the Paraguay Land Company Limited cited him as the chairman of that company. In January 1889 the prospectus for The Vaal River Diamond Company Limited cited him as chairman of that company. In March 1889 the prospectus for The Nordenham Dock and Warehouse Company Limited cited him as the chairman of that company. In April 1889 the prospectus for The Paraguayan Central Railway Company Limited cited him as a director of that company. In November 1889 the prospectus for The Anglo-Italian Inland Steam Navigation Company Limited cited him as the chairman of that company. In March 1890 the prospectus for The Empire of India Corporation Limited cited him as a director of that company. In February 1891 the prospectus for Woodhouse and Rawson United Limited cited him as a director of that company.

There then appears to have been a pause in the pace at which Thornton allowed his name to be used in the promotion of new public companies. But in the second half of the 1890s, a further wave of prospectuses appeared which named him either as company chairman or as a director, including those for The Globe Venture Syndicate Limited (January 1897), and The Gutta Percha Corporation Limited (December 1897). In both of these cases it was James Aratoon Malcolm who recruited Thornton to be company chairman. When an aggrieved subscriber to The Globe Venture Syndicate float took legal action arguing that there were fraudulent misrepresentations in the prospectus, Thornton was required to undergo cross-examination in the Chancery Division of the High Court. During the course of his testimony he stated that he had been a director of "some 14 companies, some of which had been unsuccessful, and were now in liquidation". The following day Thornton`s counsel informed the court that "after the evidence which had been given, he did not think he could resist judgment against Sir Edward Thornton for £2000 ..." In June 1900 a winding-up order was made against the Globe Venture Syndicate, and in February 1901 a public inquiry was held in the London Bankruptcy Court into the failure of the company.

Personal life In 1854, Thornton married Mary Jane ( Maitland) Melville (1827–1907), at St Peter's Church, Eaton Square. Mary, the widow of Andrew Melville of Dumfries and a daughter of John Maitland and Frances MacKenzie ( Dalyell) Maitland. Together, they were the parents of:

Edward Thornton (1856–1904), who married Emma Jessie Rawson, the younger daughter of Philip Rawson of Woodhurst, Crawley, in 1889. After his death, she married the Rev. Edward Douglas Lennox Harvey and became the mother of Capt. Roger Harvey. Mary Grace Thornton (1858–1926), who died unmarried. Frances Evelyn Thornton (1859–1936), who married Mr. Elsey.

After a lengthy illness, Thornton died at his London residence, 5 Tedworth Square, on 26 January 1906. He is buried in Brookwood Cemetery. As his son and heir, diplomat Edward Thornton (born 1856), had died in 1904, the title of Count of Cacilhas passed to his grandson, Edward Thornton.

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Important facts

Birth century
Occupation
Education
Pembroke College, King's College London
Positions held
Member of the Privy Council of the United Kingdom, Ambassador of the United Kingdom to Argentina, Ambassador of the United Kingdom of Great Britain and Ireland to the Russian Empire, Ambassador of the United Kingdom of Great Britain and Ireland to the United States
Employers
Foreign Office
Also known as
Sir Edward Thornton

People in Edward Thornton's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Edward Thornton's

Frequently asked questions

Who was Edward Thornton?

British diplomat (1817-1906)

When was Edward Thornton born?

Edward Thornton was born on 13 July 1817 in London.

When did Edward Thornton die?

Edward Thornton died on 26 January 1906 in London.

What was Edward Thornton's occupation?

Edward Thornton was a diplomat.

What nationality was Edward Thornton?

Edward Thornton was British.

Sources & further reading

· Wikipedia: Edward Thornton

· Wikidata: Q5345619

· DBpedia: Edward Thornton, 2nd Count of Cacilhas

Cite this page

APA: Biography.guide. (2026). Edward Thornton. https://biography.guide/edward-thornton-diplomat-1817/

MLA: "Edward Thornton." Biography.guide, https://biography.guide/edward-thornton-diplomat-1817/.

Chicago: "Edward Thornton." Biography.guide. https://biography.guide/edward-thornton-diplomat-1817/.

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

Portrait: Wikimedia Commons · author & licence

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