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Theologian, b. at Priero, Piedmont, 1460; d. at Rome, 1523–sometimes confounded with Sylvester Ferrariensis (d. 1526). At the age of fifteen he entered the Order of St. Dominic. Passing brilliantly through a course of studies he taught theology at Bologna, Pavia (by invitation of the senate of Venice ), and in Rome, whither he was called by Julius II in 1511. In 1515 he was appointed Master of the Sacred Palace , filling that office until his death. His writings cover a vast range, including treatises on the planets, the power of the demons, history, homiletics, the works of St. Thomas Aquinas, the primacy of the popes. He is credited with being the first theologian who by his writings attacked publicly the subversive errors of Martin Luther. John Tetzel's productions against the arch-reformer are called by Echard scattered pages ( folia volitantia ), and Mazzolini stands forth as the first champion of Roman Pontiffs against Luther. The heresiarch replied to Mazzolini's arguments; the latter published rejoinders, and there was a regular controversy between the innovator and the defender of the ancient Faith. The necessity of promptness in attack and defence will account for defects of style in some of his writings. His principal works are: "De juridica et irrefragabili veritate Romanæ Ecclesiæ Romanique Pontificis" (Rome, 1520); "Epitoma responsionis ad Lutherum" (Perugia, 1519); "Errata et argumenta M. Lutheri" (Rome, 1520); "Summa Summarum, quæ Sylvestrina dicitur" (Rome, 1516), reprinted forty times; an alphabetical encyclopedia of theological questions; "Rosa aurea" (Bologna, 1510) an exposition of the Gospels of the year; "In theoricas planetarum" (Venice, 1513).

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The Catholic Encyclopedia is the most comprehensive resource on Catholic teaching, history, and information ever gathered in all of human history. This easy-to-search online version was originally printed between 1907 and 1912 in fifteen hard copy volumes.

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Designed to present its readers with the full body of Catholic teaching, the Encyclopedia contains not only precise statements of what the Church has defined, but also an impartial record of different views of acknowledged authority on all disputed questions, national, political or factional. In the determination of the truth the most recent and acknowledged scientific methods are employed, and the results of the latest research in theology, philosophy, history, apologetics, archaeology, and other sciences are given careful consideration.

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Copyright © Catholic Encyclopedia. Robert Appleton Company New York, NY. Volume 1: 1907; Volume 2: 1907; Volume 3: 1908; Volume 4: 1908; Volume 5: 1909; Volume 6: 1909; Volume 7: 1910; Volume 8: 1910; Volume 9: 1910; Volume 10: 1911; Volume 11: - 1911; Volume 12: - 1911; Volume 13: - 1912; Volume 14: 1912; Volume 15: 1912

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