Faltonia Betitia Proba was a Latin Roman Christian poet, possibly the most influential Latin poet of Late Antiquity. She composed the Cento vergilianus de laudibus Christi, a cento composed with verses by Virgil re-ordered to form an epic poem centred on the life of Jesus.

Her family was Pagan, but Proba converted to Christianity when she was an adult, influencing her husband and her sons, who converted after her.

She was probably buried with her husband in the Basilica di Sant'Anastasia al Palatino in Rome, where, until the 16th century, there was their funerary inscription, later moved to Villa Borghese before disappearing.

The bond between Proba and this church might be related to Saint Anastasia, who probably belonged to the gens Anicia: Proba and Adelphius could have received the honour of being buried ad sanctos (next to the tomb of a saint), because of the particular veneration of the Anicii for this saint.

With her husband she owned the Horti Aciliorum at Rome, on the Pincian Hill.

Two poems are attributed to "Proba", and only one is extant. Most modern scholars identify Faltonia Betitia Proba as the author of these works, with the other possible identification being her niece Anicia Faltonia Proba.

The first poem, now lost, is called Constantini bellum adversus Magnentium by the Codex Mutinensis. It dealt with the war between Roman Emperor Constantius II and the usurper Magnentius. Proba was involved to this war through her husband, who had been praefectus urbi of Rome in 351, that the same year Italy passed from the sphere of influence of Magnetius to Constantius after the Battle of Mursa Major.

The existence of this first poem is based on the first verses of the second poem. Here Proba rejects her first Pagan composition, and scholars think that the Pagan poem was destroyed according to her will.

Proba's most famous work is a Virgilian cento, a patchwork of verses extracted from several works of Virgil, with minimal modifications (in this case, with the introduction of Biblical names). The 694 lines are divided into a proemium with invocation (lines 1-55), episodes from the Old Testament (lines 56-345), episodes from the New Testament (lines 346-688), and an epilogue (lines 689-694).

Gift med
Adelphius av Clodii, född 300 i Roma, Lazio, Italien, död 361 i Roma, Lazio, Italien. Praefectus urbi of Rome in 351.

Barn:
Olybrius av Clodii, född 325, död 389