18/10/2020

Regent Marie de Medici's Cipher

I found undeciphered passages in Marie de Medici's letters (1610) in BnF fr.3789 and included it in "French Ciphers during the Reign of Louis XIII" and "Unsolved Historical Ciphers".
The same source also included Villeroy's letter in cipher. The latter cipher turned out to be the same as one I previously reconstructed from BnF fr.15578 presented in "French Ciphers during the Reign of Henry IV of France".

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