"Montose Lines" (text) is in Herd's 'Scots Songs' I, p. 236, (Reiver 2's version as modified by Lesley N), with a heading "I'll never love the more" which is evidently meant to be the tune title, followed by "By the great Marquis of Montrose./ Part First", after which follows the 5 verses of Montrose's song/poem.

'Second Part' starts with the five verses of "I'll never love thee more" then 8 more that I don't recognize. Curiously J. W. Ebsworth (Rox. Ballads VI, p. 581) printed a late broadside called "A Proper New Ballad" where again we have Montrose's 5, then a second part commencing with the 5 of "I'll never love thee more", followed by a last 8 verses that are different than the last 8 given by Herd. Later, Rox. Ballads VIII, p. cix*, Ebworth gave "The New Danae" from a mid 17th century MS, with a few lines from Montrose's piece, a few from "I'll never love thee more" and others I can't identify.