Sacchitti, the Maltese ambassador at Rome, wrote to his court that a Russian, Boyard, general of the Muscovite army and ambassador from Peter the First, had expressed a wish to visit Malta… The same dispatches gave an account of the honours paid this Boyard and his suite. His name was Kzeremetz * [...]
And the footnote reads:
* Voltaire, in his History of the Empire of Russia under Peter the Great, chap viii. says, that he was originally a Prussian, and spells his name Sheremeto, though by others he is called Sheremetov, Sheramotoff, and Czeremetoff. L’Eveque in his History of Russia, the edition printed in 1800, calls him Cheremeteff; but I have written his name according to the credentials sent by the czar to the grand-master, in which he is termed Kzeremetz. The original of his harangue to the pope is preserved in the Vatican; I have a copy of it; and in that he is called Kremer: but in his discourse to the grand-master, of which I have likewise a copy, he is named Czeremeter; and Szerempsen in the letter of recommendation sent by the emperor Leopold to the grand-master. Sebastian Paolo has printed it in his Codex Diplom. vol. II. page 373. He has also printed his credentials.