Cosimo I de MEDICIS (1519-1574) Duke of Florence and Grand Duke of Tuscany. L.S. "Il Duca di Fiorenza", Poggio July 20, 1561, to Giovanni Caccini "Proveditore de Fossi" in Pisa; half-page folio, addressed with seal of arms under paper (slight foxing); in Italian. He approves the order given by Caccini for the most precise possible state of the population ("per la descrittione universale de populi, per haverla piu vera, che si possa, che tutto sta bene"). Then he mentions the payment to be made by him and his wife the Duchess for the estimator's fees ("che habbiamo a pagare noi et la Duchessa nostra Consorte per conto dell'estimo si chiarisca tutto di quel' che sono"), first committing Caccini to clean up everything...