The correspondence between the four young men reveals that in those years (1603-1606), the de Filiis often moved around, living alternately in Terni and Rome. Even when away from Rome, Anastasio continued to act as secretary of the Academy. In 1606, perhaps drawing on the lessons of Giambattista della Porta, he left for Naples, where he died in 1608. Works Of his works, which were among the lost manuscripts of the Biblioteca Albani, only two titles are known: 'De arcanis naturalibus' and 'Novae saecundorum motuum tabulae ab Eclipsato Lyncaeo delineatae' . References 1577 births 1608 deaths 16th-century Italian scientists 17th-century Italian astronomers Members of the Lincean Academy