The First Folio text(1623) of „Macbeth“ must have been altered by „late“ hands compared to earlier versions [no more existent]. Shakespeare‘s only print of „Macbeth“ in the First Folio strangely included verses from scenes of the play „The Witch(1615)“ by Thomas Middleton based in part on an episode in Machiavelli's Florentine History. – „Macbeth“ also contained contextual information of William Warners Chapt-94 („Of Makbeth the Tyrants“) newly added in „A Continuance of Albions England (1606), in which he reports on the story of the „Fairies“ (the weird elfes) who foretold the fate of Fleahys father.
Does Prof.Bate assume that Shakespeare plagiarized from "William Warner" or "Thomas Middleton"?
Why did I never ever found an interpretation of the meaning of Warner strange Title picture? Two elevations[identities] with two flowers, a marigold and a violet, reminding on a phrase in Shakespeares "Pericles". ("The purple violet , and marigold , shall as a carpet hang upon thy grave)