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Clan Maclachlan

Highland Scottish clan

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 22, 2026
Entity authorityQ750335
Source-derived summary

Clan Maclachlan, also known as Clan Lachlan, Clann Lachainn (Argyll), and Clann Lachlainn, is a Highland Scottish clan that historically centred on the lands of Strathlachlan (Srath Lachainn "Valley of Lachlan") on Loch Fyne, Argyll on the west coast of Scotland. The clan claims descent from Lachlan Mor, who lived on Loch Fyne in the 13th century, and who has left his name upon the countryside he once controlled: places such as Strathlachlan, Castle Lachlan and Lachlan Bay. Tradition gives Lachlan Mor a descent from an Irish prince of the O'Neill dynasty, Ánrothán Ua Néill, son of Áed, son of Flaithbertach Ua Néill, King of Ailech and Cenél nEógain, died 1036. Clan Maclachlan has been associated with other clans, such as Clan Lamont, Clan Ewen of Otter, Clan MacNeil of Barra, and the MacSweens: as all claim descent from Anrothan O'Neill who left Ireland for Kintyre in the 11th century. From this descent the clan claims a further descent from the legendary Niall Noigíallach, High King of Ireland, who lived from the mid 4th century to the early 5th century.

The clan took part in the Jacobite risings as loyal supporters of the Stuart kings of Scotland. The seventeenth chief of the clan was killed in the Battle of Culloden in 1746. Following the Jacobite defeat, a Government warship is said to have damaged the clan seat of old Castle Lachlan.

Today the clan is alive and lives as the Clan Maclachlan Society and the Lachlan Trust. The Lachlan Trust is a registered Scottish charitable organisation which takes donations to preserve the heritage of Clan Maclachlan.

Editorial summary

“Clan Maclachlan” enters the record as highland Scottish clan. Crown Archives preserves that source wording while asking what Clan, Maclachlan and Highland can confirm, complicate or overturn.

Editorial reviewA dependable orientation record for establishing vocabulary, names and a first evidence trail. The current lead gives the account dated anchors—1036, 1746—that can be checked directly. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Clan, Maclachlan and Highland.
Editorial analysis

Why this record matters

“Clan Maclachlan” is worth following because a concise public description often conceals a longer documentary argument. Here, Clan, Maclachlan and Highland provides the most credible route into that argument.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 22, 2026. The linked authority identifier is Q750335. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1036 and 1746.

Critical limits

A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. 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

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

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Three-step research path

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  2. Expand the search: follow Clan Maclachlan primary sources, Clan Maclachlan archive and Clan research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

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Source & attribution

This entry incorporates text from Clan Maclachlan” 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.