Yakov Ivanovich de Sanglen, close to Alexander I and the head of the secret police in 1812-1816, was a figure, as they say, ambiguous and had the corresponding reputation. N.I. Greek in his “Notes” explains his proximity to the emperor’s person by the fact that he was “a bouncer, a scoundrel”: “Alexander did not trust anyone, even his police Minister, and Sangeline served him as a spying” 1 . In a word, a bad person, a "radish". But A.I.