I'm new to this group, so I'm not sure if starting a conversation is the appropriate way to ask this question - but I've had an interest in the various peerages of the British Isles for a long time, and one thing I've noticed but never been able to find an answer to is why there are so many double and triple barreled Scottish peerages? They have at times been created in the other peerages - notably the royal dukedoms created in the 1700 and 1800s (Duke of York and Albany, Connaught and Strathearn, Cumberland and Teviotdale, etc) and occasionally for non-royal peers (Marquess of Aberdeen and Temair), but the Scottish peerages seem to be rife with them, and almost exclusively as subsidiary titles. Examples include: Viscount of Balquhidder, Glenalmond and Glenlyn (Duke of Atholl), Lord Aberruthven, Mugdock and Fintrie (Duke of Montrose), and most ostentatiously, the extinct
Lord Badenoch, Lochaber, Strathavon, Balmore, Auchindoun, Garthie and Kincardine (Duke of Gordon/Marquis of Huntly).
Was this just a stylistic quirk of the Scottish peerage, or was the purpose to recognize each region where they held significant lands in one title, rather than creating several?