The Montefeltro Conspiracy

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A brutal murder, a nefarious plot, a coded letter. After five hundred years, the most notorious mystery of the Renaissance is finally solved.

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Marcello Simonetta, working in a private archive in Italy, stumbled upon a coded letter written by Federico da Montefeltro, the Duke of Urbino, to Pope Sixtus IV. Using a codebook written by Cicco Simonetta to crack its secrets, the author unearthed proof of an all-out power grab by the Pope for control of Florence. These are images of the coded letter from Federico da Montefeltro to his envoys in Rome.

The First Page of the Coded Letter Third page of the coded letter Detail of F2 in the coded letter An Additional Page from the Montefeltro Codebook A Page from the Montefeltro Codebook

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