Cassiano dal Pozzo (1588 – 22 October 1657) was an Italian scholar and patron of arts. The secretary of Cardinal Francesco Barberini, he was an antiquary in the classicizing circle of Rome, and a long-term friend and patron of Nicolas Poussin, whom he supported from his earliest arrival in Rome: Poussin in a letter declared that he was "a disciple of the house and the museum of cavaliere dal Pozzo." A doctor with interests in the proto-science of alchemy, a correspondent of major figures like Galileo, a collector of books and master drawings, dal Pozzo was a node in the network of European scientific figures.
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