Quote Originally Posted by Bugbear View Post
I guess the question would have to be about, as you say, setts that had been associated with clans in that century and are now used as clan tartans?
If speaking of use as the main clan tartan today then there are two probably contenders: MacKintosh and MacDougall but even those associations are open to debate.

There are a number of non-standard tartans associated with clans today that have a connection them in the C18th. The MacDonalds have more than their fair share : Borrodale, Glenaladale, Kingsburgh, Lord of the Isles Red and Green setts. Others include: the Red Campbell setts, MacQuarrie and Murray of Tullidardine.