Francesco Melzi was an Italian painter. He was the son of a Milanese noble family. Melzi joined the household of Leonardo da Vinci in 1506. He accompanied Leonardo on trips to Rome in 1513 and to France in 1517. As a painter, Melzi worked closely with and for Leonardo. Some works which, during the nineteenth century, were attributed to Leonardo are today ascribed to Melzi.
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Source: Wikipedia