In April 1697, Loudoun was appointed a Privy Councillor for Scotland. From February 1699 until his death, he was also an Extraordinary Lord of Session, having been appointed at an unusually early age.George Fisher Russell Barker, "Campbell, Hugh, third Earl of Loudoun", in Dictionary of National Biography, vol. 8, online at Wikisource In recommending Loudoun for the Court of Session, the Earl of Argyll wrote to William Carstares
