“ One of his last acts before leaving Edinburgh had been to pronounce (March 15, 1689) , as dean of the faculty of advocates, the inaugural oration at the foundation of the Advocates’ library. He died at Westminster on the 8th of May 1691, and was buried in Greyfriars churchyard, Edinburgh. ”

“ In his Jus Regium: or the Just and Solid Foundations of Monarchy in general, and more especially of the Monarchy of Scotland, maintained (1684) , Mackenzie appears as an uncompromising advocate of the highest doctrines of prerogative. His Vindication of the Government of Scotland during the reign of Charles II. (1691) is valuable as a piece of contemporary history. The collected Works were published at Edinburgh (2 vols. fol.) ”