Nigroni, Giuio a learned Italian ecclesiastic, was born in 1553 at Genoa. At eighteen years of age he entered the Society of Jesus, taught rhetoric, philosophy, and theology, and became successively prefect of studies in the College of Milan, rector of the colleges of Verona, Cremona, and Genoa, and superior of the monastic house of Genoa and that of Milan. He died in Milan January 17, 1625. We have of his works, Orationes xxv (Milan, 1608, 4to; Mayence, 1610, 8vo): — Sur la Maniere de bien gouverner I'Etat (Milan, 1610, 4to, in Italian): — Regulae communes Soeietatis Jesu, commentariis asceticis illustrate (ibid. 1613, 1616, 4to; Cologne, 1617, 4to): — Dissertatio subcesiva de caliga veterum (Milan, 1617, 12mo; 3d ed. Dillingen, 1621, 8vo); it contains some curious details of the boots from which the emperor Caligula took his surname, and has been reprinted several times (Amsterdam, 1667, and Leipsic, 1733, 12mo) with an analogous work, Calceus antiquus et mysticus, by Benoit Balduin: — Tractatus ascetici x (Milan, 1621, 8vo; Cologne, 1624, 4to); these treatises at first appeared separately: — De librorum amatoriorum lectione, junioribus maxime vitanda (Milan, 1622, and Cologne, 1630, 12mo): — Dissertatio de aula et aulicismi fuga (Milan, 1627, 8vo), under the anagram of Livius Noringius: — Historica dissertatio de S. Ignatio Loyola et B. Cajetano Thiceneo, institutore ord. clericorum regul. (Cologne, 1630, and Naples, 1631, 4to): — Les Emblemes de l'A cademie Parthenienne du College Romain de la Sociite de Jesus (printed at Rome in Italian, 1694, 4to). See Sotwell, De Script. ord. Soc. Jesu.