Clan MacArthur

The MacArthurs, also called Clan Arthur, are an Argyll family of Loch Awe and Strachur. Their chiefship lapsed in the eighteenth century and was recognised again by the Lord Lyon in 2002.

History

The MacArthurs, or Clan Arthur, are an Argyll family. Clan accounts set them beside Loch Awe and rank them among the county's most ancient families. Their name means 'son of Arthur', and how far back that goes is a matter of tradition. The clan's own history argues that the Arthur patronym is older than MacCailein Mòr, the style of the Campbell chiefs. Other writers are less sure.

The link with the Campbells is the most disputed part of the story. Some accounts say the two families share a common origin, and that the MacArthurs once claimed seniority. The University of Strathclyde's genetic-genealogy page finds no support for it, and blames much of the muddle on the Campbells of Strachur, a distinct line. We would treat the Campbell connection as unproven either way.

What most accounts agree on is a sharp fall in 1427. Iain MacArthur of Strachur is reported to have been executed on the orders of James I. The family is said to have lost nearly all its lands after that, keeping Strachur and some holdings in Glenfalloch and Glendochart in Perthshire. Their earlier position was never recovered.

Branches of the name found other roles in the Hebrides. On Islay, the Proaig MacArthurs are said to have been armourers by inheritance to the MacDonalds of the Isles. On Skye, a MacArthur family held the post of pipers to the MacDonalds, passed down by descent, though sources differ over which MacDonald line they served.

The chiefly line is another area of doubt. The clan's account puts the original chiefly seat at Tirivadich on Loch Awe, and says it later moved to Tiricladdich after violent events in the 1560s. The clan society tells of Duncan MacArthur, his eldest son and their boatmen drowned in Loch Awe in 1567 in a dispute with the Campbells of Inverawe, and treats the details as tradition rather than proven fact; it points to a charter pardoning the Inverawe Campbells as evidence that something happened. Accounts say the chiefly line failed in the eighteenth century, and the chiefship lay empty for generations.

It was revived in the modern era. Genealogical research by Hugh Peskett, building on earlier work by the 10th Duke of Argyll, supported a petition to the Lord Lyon. The petition asked two questions: whether the Arthurs or MacArthurs should be treated as a clan in their own right, and whether the petitioner was the rightful heir. By an interlocutor dated 28 August 2002, the Lord Lyon recognised a chief of the name. A formal inauguration followed in 2003, and the chiefship has since passed within the same family. We have not seen the Standing Council's own listing, so check that for the current holder.

Clan MacArthur tartans

Names and reference numbers follow the Scottish Register of Tartans. Mills sell most setts in modern, ancient and weathered colourways. The pattern is the same; only the shades change.

Get the kilt

When you order a kilt, ask for the tartan by its full name — for example “MacArthur” — and say which colourway you want. “Modern” is dark and strong, “ancient” is lighter, “weathered” is muted. The sett is the same in each.

We are choosing retailers we trust and will list them here soon.

Wear the colours

Our own MacArthur range is on its way: the name, the tartan and the motto on a heavyweight tee, a hoodie and a mug. About the shop.

Lands and seats

  • Tiricladdich (Inistrynich), Loch Awe. Given by the clan society as the present chiefly seat, said to have replaced an earlier seat at Tirivadich on Loch Awe after violent events in the 1560s.

Surnames

The clan name and its spellings

  • MacArthur
  • Arthur
  • MacArtair
  • MacArtur
  • MacArter
  • Makarthour
  • Mackartar

Names associated with Clan MacArthur

  • MacCarter
  • Dewar
  • MacCarter: Listed on the Clan Arthur names page and by the Clan Campbell Society; may be a separate surname.
  • Dewar: Discussed on the Clan Arthur names page; also linked to Clan MacNab and Clan Menzies, so it may be a separate family.

“Associated” means the name appears in published sept lists for this clan. It does not prove descent, and many names are linked to more than one clan. Where your family lived is often the better clue.

Questions people ask

What is the MacArthur tartan?

The Scottish Register of Tartans lists several MacArthur clan setts. The customarily accepted one is dated 1842, and there is an older Highland Society sett and a Milton hunting sett. The Register says the chief has accepted both the main sett and the Highland Society version as genuine.

What is the MacArthur motto?

The motto is Fide et opera, Latin for 'By faith and work'. The crest is two branches of bay in a circle, and the plant badge is wild thyme.

Is Arthur a MacArthur name?

Arthur, MacArtair and several other spellings appear on the Clan Arthur society's list of names. Some may be separate families, so a spelling alone does not prove descent.

Where are the MacArthurs from?

Argyll. The clan is tied to Loch Awe and Strachur, with branches on Islay and Skye. The chiefly seat is given as Tiricladdich on Loch Awe.

Sources

  1. Clan Arthur: History — Clan Arthur Society (clanarthur.org)
  2. Clan Arthur Names — Clan Arthur Society (clanarthur.org)
  3. Clan Arthur: Symbols — Clan Arthur Society (clanarthur.org)
  4. The MacArthurs of Islay — Clan Arthur Society (clanarthur.org)
  5. MacArthur Family — University of Strathclyde
  6. MacArthur (ref. 2278) — Scottish Register of Tartans
  7. MacArthur (Highland Society) (ref. 2280) — Scottish Register of Tartans
  8. MacArthur of Milton Hunting (ref. 2281) — Scottish Register of Tartans

Clan histories are contested and sources disagree. If you can correct something here with a source, write to hello@tartanflag.com. Last updated 8 October 2026.