The influential Italian physician, humanist philosopher, and Catholic priest Marsilio Ficino (1433–1499) was an important figure in the early Italian Renaissance. Ficino’s three-book series, De vita libri tres, published in 1489, influenced the thinking of people of the time and remained popular until the 17th century. Icones Medicorum (1574), a book published during Shakespeare’s lifetime, includes this portrait entitled “M. Ficinus.”