Count Negretto Sylvius

Count Neggreto Syvlius preparing to strike a blow at a replica of Holmes (illustration by Alfred Gilbert in The Strand Magazine (october 1921)

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We give you best, Holmes. I believe you are the devil himself. — Neggreto Sylvius to Sherlock Holmes

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The Count Negretto Sylvius is a fictional character, main antagonist of the short-story "The Mazarin Stone" published in October, 1921. He is presented as a half-italian aristocrat, thief and crook, and lunatic as he preaches better manners in a good mood than worse in a bad one.

Biography

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Gallery

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