DIODATI, GIOVANNI (1576-1649), Swiss Calvinist, was born in Geneva on June 6, 1576, of a refugee Protestant family from Lucca. In i6o6 he became professor of theology, in 1608 pastor at Geneva, and in 1609 succeeded Beza as professor of theology. Diodati is chiefly famous for his Italian translation of the Bible (1603, edited with notes, 1607). He died at Geneva on Oct. 3, Among his other works are his Annotationes in Biblia (1607, Eng. trans., 1648) and polemical treatises, such as De fictitio Pontificiorum Purgatorio (1619) ; De iusta secessione Reformatorum ab Ecclesia Romana (1628) ; De Antichristo, etc. He also published a French translation of his friend Sarpi's History of the Council of Trent.