or HILARIA'NUS, Q. JU'LIUS, an ecclesiastical writer belonging to the close of the fourth
century, of whose history we know nothing since his works convey no information upon the
subject, and he is not mentioned by any ancient authority whatever.
Works
Two works bear the name of Hilarius.
1.
ExpositumExpositum de Die Paschae et Mensis, on the determination of
Easter, finished, as we are told in the concluding paragraph, on the fifth of March,
A. D. 397. It was first published from a MS. in the Royal Library at
Turin, by C. M. Pfaff, and attached to the edition of the Divine Institutions of Lactantius,
printed at Paris in 1712. It will be found under its most correct form in the
Bibliotheca Patrum of Galland, vol. viii. Append. ii. p. 745. Venet. fol.
1772.
2.
De Mundi Duratione,De Mundi Duratione, or, according to a Vienna MS.,
De Cursu Temporum, composed, as we learn from the commencement, after the
piece noticed above.
Editions
De Mundi Duratione was first published by Pithou in the
appendix to the
Bibliotheca Patrum, printed at Paris in 1579. It was
inserted also in the subsequent edition of the same collection, in many similar
compilations, and appears under its best
form in the
Bibliotheca
Patrum of Galland, vol. viii. p. 235.
Another work thought to be by Hilarius
With regard to the title of another work supposed to have been written by the same author,
see Mansius, ad Fabr. Bibl. M. et Inf. Lat. vol. iii. p. 251.