Allacci [Allacius, Allatius, Allatios], Leone [Lione, Leo, Leon]
- Thomas Walker
[Lione, Leo, Leon]
(b Chios, 1588; d Rome, Jan 19, 1669). Italian theologian and scholar of Greek origin. He went to Italy as a child and studied philosophy, theology, and classics in Rome at the Greek Catholic Collegio di S Atanasio from 1599 to 1610. After a period in Chios he studied medicine in Rome until 1616. Thereafter he was employed in the Vatican Library and was responsible for moving the Biblioteca Palatina from Heidelberg to Rome in 1622–3. In 1661 he succeeded Luca Holstenio as chief curator of the Vatican Library. He wrote extensively on a wide range of subjects including theology, Byzantine studies, classical antiquity, and Italian letters. He was a member of the Accademia degli Incogniti, which played an important role in early Venetian opera. He is significant for the history of music by virtue of his Drammaturgia … divisa in sette indici (Rome, 1666), a compendious and surprisingly accurate list of dramatic works of all kinds, including opera librettos, published in Italy; it also lists many unpublished works. A second, vastly enlarged and updated edition by Giovanni Cendoni, Apostolo Zeno, Giovanni degli Apostoli, and others unnamed (Venice, ...