The MacAulays of Lochbroom and Coigach were amongst the ancient inhabitants of Kintail.
They were allied to Alexander II of Scotland (1214 - 1249) who granted them land in Lochbroom and Coigach for loyal services to the King.
Their saga is closely entwined with Clan MacKenzie of Kintail whose stronghold Eilean Donan Castle was commanded and defended by Duncan MacAulay against the attacks of William, Earl of Ross.
They also fought under King Alexander III against King Haco of Norway who invaded Ayrshire on October 2, 1262. Alongside of them in the thick of battle were their clansmen, the Ardencaple MacAulays.