Camilla, Duchess of Cornwall paternal ancestors, a minor aristocratic (gentry) family emigrated to England from Scotland. Camilla on her paternal side is descended from James Shand, 1st Laird of Craigellie, whose father, also named James Shand, held the office of Provost of Banff. Other noble ancestors on her paternal side include George Keith, 5th Earl Marischal, William Douglas, 7th Earl of Morton, and George Hay, 1st Earl of Kinnoull. Camilla's French lineage derives partially through her maternal great-great-grandmother, Sophia Mary MacNab of Hamilton, Ontario, daughter of Sir Allan MacNab, who was the Prime Minister of the Province of Canada before Confederation. Sophia was the
Duchess of Cornwall that are typically used to refer to them. In Scotland the couple use the title Duke and Duchess of Rothesay. Since the title of Duke of Cornwall can be held only by an heir-apparent who is also the eldest son of the monarch, no woman can be Duchess of Cornwall in her own right. However, this may change now that proposals to change the rules of succession are completed. The first Duchess of Cornwall was Joan "The Fair Maid of Kent", who, in October 1361, married Edward, the Black Prince. Catherine of Aragon was also Duchess of Cornwall through her