Argyll, a noble family or clan of the name of Campbell, the members of which have held successively the title of Earl, Marquis, and Duke, their first patent of nobility dating from 1445, and their earldom from 1453.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Argyll * Argyll, Archibald Campbell, 1st Marquis of