Catholic Encyclopedia (1913)/Gregor Zallwein
Canonist, born at Oberviechtach, Oberpfalz, 20 October, 1712; died at Salzburg, 6 or 9 August, 1766. After studying the Humanities at Ratisbon and Freising he took vows at the Benedictine Abbey of Wessobrunn, on 15 November, 1733, and was ordained priest on 27 October, 1731. He studied canon law at Salzburg, 1737-9, became master of novices at his monastery in 1739, and prior in 1844. Upon the request of the Prince-bishop of Gurk, Joseph Maria ount of Thun, he was sent as professor of canon law to the newly-erected seminary at Strasbug in Carinthia. From 1749 till his death he was professor of canon law at the Benedictine University of Salzburg, where he held at the same time the office of "Rector magnificus" from 1759. Unlike most German canonists of his tme, he laid great stress on the sources and historical development of canon law. Though his juristic writings are at times not clear, his lectures were valued very highly and attended even by students from foreign countries. His chief work is "Principia juris eccles. universalis et particularis Germaniae" (4 vols., Augsburg, 1763; 2nd ed. by Kleimayern, Augsburg, 1781; 3rd ed., Augsburg, 1831). His other canonical works are: "Disputatio prima de jure canonico. . ." (Salzburg, 1753); "Fontes originarii juris canonici, adjuncta historia ulare Germaniae" (Salzburg, 1757); "Dissertatio de statu ecclesiae, de hierarchia. . ." (Salzburg, 1757).
LINDNER, Die Schriftsteller des Benediktiner-Ordens im heut. Konigreich Bayern 1750-1880, I (Ratisbon, 1880), 181-2; SATTLER, Collectancen-Blatter z. Gesch. der chemal. Benedictiner-Universitat Salzburg (Kempten, 1890), 439-45; ZALLWEIN, Principia juris ecct., ed. KLEIMAYERN.