Liturgist and canonist; b. Rippweiler, Luxembourg, June 21, 1828; d. Innsbruck, Jan. 31, 1907. After his ordination in 1852 Nilles was appointed curate at Ansemberg (1853–58). He entered the Jesuits on March 20, 1858. In 1859 he was appointed professor of Canon Law at the University of Innsbruck and held the chair almost until his death; from 1870 to 1896 he was also rector of the seminary. He contributed 57 articles to the Archiv für katholisches Kirchenrecht and 94 to the Zeitschrift für katholische Theologie. He also published the following works: Symbolae ad illustrandam historiam ecclesiae orientalis in terris coronae S. Stephani (2 v. Innsbruck 1885), De rationibus festorum sacratissimi Cordis Jesu et purissimi Cordis Mariae (2 v. 5th ed. Innsbruck 1885), and Kalendarium manuale utriusque ecclesiae orientalis et occidentalis (2 v. 3d ed. Innsbruck 1896–97).
Bibliography: m. blum, Das Collegium Germanicum zu Rom und dessen Zöglinge aus dem Luxemburger Lande (Luxembourg 1899) 94–109. h. hurter, Nomenclator literarius theologiae catholicae (Innsbruck 1903–13) 5.2:2067–69. h. leclercq, Dictionnaire d'archéologie chrétienne et de liturgie, ed. f. cabrol, h. leclercq and h. i. marrou (Paris 1907–53) 9.2:1732–34.