Clan Arthur or Clan MacArthur, (Scottish Gaelic: Clann Artair) is a highland Scottish clan that once held lands on the shores of Loch Awe opposite Inishail. The clan has been described as one of the oldest clans in Argyll. Clan Arthur and Clan Campbell share a common origin, and at one point the MacArthurs challenged the seniority of the leading Campbell family. A branch of MacArthurs from the Isle of Skye were a sept of the MacDonalds of Sleat, and were hereditary pipers for the MacDonalds of the Isles. In late 18th century the chief of the clan died without an heir, leaving the clan leaderless until the late 20th century. In 2002, the first chief of Clan Arthur was recognized in about 230 years.