François-Xavier de Feller
François-Xavier de Feller (18 August 1735 – 23 May 1802) was a Belgian author. Biography. He was born in Brussels. In 1752 he entered a school of the Jesuits at Reims, where he manifested a great aptitude for mathematics and physical science. He commenced his novitiate two years afterwards, and in testimony of his admiration for the apostle of India added Xavier to his surname. On the expiry of his novitiate he became professor at Athénée de Luxembourg, and afterwards at Liège. In 1764 he was appointed to the professorship of theology at Tyrnau in Hungary , but in 1771 he returned to Belgium and continued to discharge his professorial duties at Liège till the suppression of the Jesuit Order in 1773. The remainder of his life he devoted to study, travel and literature. On the invasion of Belgium by the French in 1794 he went to Paderborn, and remained there two years, after which he took up his residence at Ratisbon, where he died in 1802. Feller's works exceed 120 volumes. In 1773 he published, under the assumed name Flexier de Reval (an anagram of "Xavier de Feller"), his "Catéchisme philosophique"; and his principal work  Dictionnaire historique et littéraire (published in 1781 at Liège in volumes, and afterwards several times reprinted and continued down to 1848), appeared under the same name. Among his other works the most important are "Cours de morale chrétienne et de littérature religieuse" (Paris, 1826) and his "Coup d'oeil sur le Congrès d'Ems" (1787). The "Journal historique et littéraire" was published in Luxembourg from 1773 to 1788 and in Maastricht and Liège from 1788 to 1794; a total of 62 volumes appeared, edited and in large part written by Feller.