, bishop of Cagliari, the metropolis of Sardinia, is known in ecclesiastical history as the author of a schism, the occasion of which was, that Lucifer would not allow the decree made in the council of Alexandria, A. D. | 362, for receiving the apostate Arian bishops. This he opposed so resolutely, that, rather than yield, he chose to separate himself from the communion of the rest, and to form a new schism, which bore his name, and -soon gained a considerable footing, especially in the West; several persons no less distinguished for piety than learning, and among the rest Gregory, the famous bishop of Elvira, having adopted his rigid sentiments. As Lucifer is honoured by the church of Rome as a saint, where his festival is kept on the 20th of May, Baronius pretends that he abandoned his schism, and returned to the communion of the church, before his death. But his contemporary, Ruffinus, who probably knew him, assures us, that he died in the schism which he had formed, A D. 370. His works are written in a harsh and barbarous style. According to Lardner, they consist very much of passages of the Old and New Testament, cited one after another, which he quotes with marks of the greatest respect. He farther adds, that the works of this prelate have not yet been published with all the advantage that might be wished. The titles of these works are, “Ad Constantinum Imperatorem, lib. ii.” “De Regibus Apostaticis” “De non conveniendo cum Hereticis” “De non parcendo Delinquentibus in Deum” “Quod moriendurn sit pro Filio Dei” and “Epistola brevis ad Florentium.” They were collected together, and published at Paris by John Till, bishop of Meaux, in 1568, and at Venice about 1780, in fol. with additions. 1