In 1475, James III appointed Colin Campbell, 1st Earl of Argyll, as his Lieutenant, responsible for "good order" in areas which included Argyll & Lorn and, among other territories, Balquhidder. This authority was repeated by the crown for the Earl's successors in 1504, 1525 and 1549. By 1500, the Stewarts of Appin had become bound as vassals to the Earl of Argyll. In 1566, John Stewart, 5th of Appin signed bonds of manrent giving his allegiance to Colin Campbell of Glenorchy.