Thomas Cochrane, 10th Earl of Dundonald
British naval officer, politician and mercenary (1775–1860)

Admiral Thomas Cochrane, 10th Earl of Dundonald, Marquess of Maranhão, styled Lord Cochrane between 1778 and 1831, was a British naval officer, politician and mercenary. Serving during the French Revolutionary and Napoleonic Wars in the Royal Navy, his naval successes led Napoleon to nickname him le Loup des Mers. He was successful in virtually all his naval actions.
Begin with the source’s own compact description: “Thomas Cochrane, 10th Earl of Dundonald” is british naval officer, politician and mercenary (1775–1860). The dossier treats that line as a proposition to test through Thomas, Cochrane and 10th, not as a finished interpretation.
Why this record matters
The phrase “british naval officer, politician and mercenary (1775–1860)” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Chronology provides the most reliable spine for this subject; interpretation should follow only after identities and dates are secure. The source revision retrieved here is dated Sep 10, 2026. The first chronological checks are 1778 and 1831.
A concise life account rarely captures disputed attribution, private networks or the changing language used to describe a career. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.
- Establishing names and roles
- Building a first chronology
- Locating cited institutions
Personal papers, civil or court records, institutional files and the scholarship cited by the source.
Three-step research path
- Establish the record: confirm the title “Thomas Cochrane, 10th Earl of Dundonald”, its source revision and the description used here.
- Expand the search: follow Thomas Cochrane, 10th Earl of Dundonald primary sources, Thomas Cochrane, 10th Earl of Dundonald archive and Thomas research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Thomas Cochrane, 10th Earl of Dundonald”?
- Which primary records establish identity, chronology and institutional ties?
- How has the subject’s reputation changed across later accounts?
Search terms from this dossier
This entry incorporates text from “Thomas Cochrane, 10th Earl of Dundonald” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.