being the most senior available title).

Before the dukes succeeded to the Marquessate of Douglas and its subsidiary titles, the heirs apparent were styled initially "Earl of Arran" (which had previously been used as a courtesy title by the marquesses of Hamilton) and later "Marquess of Clydesdale" (the former style then being adopted for a grandson in direct line). The heir apparent to the Earldom of Lanark (before that title merged with the dukedom) was styled "Lord Polmont".

Multiple dukedoms

1.Previous
3.Next