Duke of Florence from 1537 until his death in 1574, reigning as the first Grand Duke of Tuscany beginning in 1569. Manuscript DS in Italian, signed “Il Duca di Fiorenza,” one page both sides, 8.25 x 11.25, no date. Untranslated document signed at the conclusion by Cosimo I de' Medici as Duke of Florence. In very good condition, with scattered staining and foxing.
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