As for my stuff about "fighting for English Royalty". I lived in Scotland from 1960 to 1978, and went to the Academy in Galashiels and to College in Edinburgh. Many of my fellow students taught me that Scots still had to mind what they said about Which Royalty they were fighting for when the English were about. Like toasting "The King"(across the water, you know): they delighted in continuing the sense of historical rebellion. So I just feel it noteworthy that these songs sung in and before Victorian times are deliberately ambiguous as to who they were fighting for and against.