Note 2 — DISQUISITIONS ON THE BOOK ENTITLED THE THREE IMPOSTORS.

He condemns at once the opinion of those who attribute the work to the Emperor Frederick. The false charge, he says, took its rise from a passage in the appendix to a discourse concerning Antichrist, and published by Grotius, wherein he speaks as follows2: “Far be it from me to attribute the book called ‘The Three Impostors,’ either to the Pope, or to the opponents of the Pope; long ago the enemies of the Emperor Frederick Barbarossa set abroad the report of such a book, as having been written by his command; but from that period nobody has seen it; for which reason I consider it apocryphal.”