The secret code of Charles V was deciphered after 500 years: what scared the emperor

Charles V was one of the most powerful rulers of the 16th century and ruled over a vast empire that spanned

most of Western Europe and America, more40 years. It took staff at the Loria research laboratory in eastern France six months to decipher a letter written in 1547 by the emperor to the ambassador in France.

The middle of the 16th century was distinguished by a series of warsand tense relations between Spain and France. At the time it was ruled by Francis I, a classic representative of the Renaissance, who brought Leonardo da Vinci from Italy.

Letter from Charles V to Jean de Saint-Mauricefor centuries it was in the collections of the Stanislas library in Nancy. Now it was possible to decipher it, although it was not easy. It turned out that Charles V encrypted entire words with one symbol, and sometimes one symbol meant one letter. In addition, he changed the vowels that come after the consonants with signs. Researchers have suggested that he was inspired by the Arabic language. The ruler also used symbols that meant nothing to deceive any enemy who might intercept the message.

Fragments of the letter that have been deciphered confirm the deterioration of relations between Francis I and Charles V in 1547, who signed a peace treaty three years earlier.

Despite the pact, the rulers tried“weaken each other,” the study authors explain. So much so that the letter contained information about a possible plot to assassinate Charles V, which was rumored to be brewing in France. As experts explain, the “fear” of the monarch is felt in the letter.

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