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a presbyter, who adhered to the sect established by the intemperate Lucifer of Cagliari, flourished towards the close of the fourth century.


Of his personal history we know almost nothing, except in so far as it can be gleaned from three tracts which bear his name.


This treatise, the subject of which is sufficiently explained by the title, has been erroneously ascribed to the Spanish bishop Gregorius. It is divided into seven books, or rather chapters, and must have been composed not later than A. D. 385, since Flacilla, the first wife of Theodosius, died in that year.


A short Confession of Faith, written probably between the years 379-381, at which period Faustinus appears to have resided at Eleutheropolis.


The Libellus Precum was presented to Valentinianus and Theodosius about A. D. 384. It contains a defence of the tenets of the Luciferiani, craves the protection of the emperors, and is believed to have been the joint work of Faustinus and Marcellinus. Attached to it we find a Praefalio, from which we learn that the authors had twenty years before taken a most active part in favour of Ursinus against Damasus [DAMASUS], and had suffered much persecution in consequence. This introduction, which is extremely violent in its representations, appears not to have been drawn up until after the publication of the favourable rescript by Theodosius to the petitions of the Libellus.

Further Information

The De Trinitate was first printed in the Orthodoxograph. of Heroldus, fol. Basil. 1555; the Libellus, by Sirmond (8vo. Paris, 1650, and Sirmond, Oper. vol. i. p. 230. fol. Paris, 1696), together with the rescript of Theodosius and ancient testimonies regarding the controversy between Damasus and Ursinus; the Fides by Quesnel in the Canones et Constitut. Eccl. Rom., vol. ii. p. 138, 4to. Paris, 1675.

The collected works of Faustinus will be found in the Bibl. Max. Patrum, Lugdun. 1677, vol. v. p. 637, and under their best form in the Bibl. Patrum of Galland, vol. viii. p. 441.

Further Information

Gennadius, de Viris Ill.11.


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